Environmental Emergencies – Bites, Stings, Poisoning & More…

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Environmental Emergencies are emergencies arising from the surrounding environment. These typically include bites and stings, poisoning, envenomation, intoxication, as well as hyperthermia and hypothermia triggered by environmental exposure.

Bites & Stings Environmental Emergencies

environmental emergencies
Retrieved from https://www.communityhikingclub.org/information/what-bit-me/ on 10th October 2022

Bites and stings are considered to be environmental emergencies resulting from insect stings, animal bites, human bites, fish stings, and jelly fish stings. Possible complications to bites and stings include pain, bleeding, infection, envenomation, and anaphylaxis.

Bites & Stings Signs & Symptoms

  • bite marks
  • bite wounds
  • localised pain
  • localised tenderness
  • redness, swelling and warmth to touch – indication of inflammation & possible infection: check casualty’s temperature to confirm

First Aid for Bites & Stings

  1. take necessary precautions – assess possible dangers and wear gloves
  2. provide reassurance
  3. assess for any ABC compromise
  4. identify signs of anaphylaxis or envenomation
  5. provide first aid based on casualty’s condition or injury
  6. call 112
  7. monitor casualty for possible respiratory compromise or development of shock

For Animal & Human Bites…

  1. control bleeding by applying direct pressure on site
  2. once bleeding is under control, wash wound with soap and water to get the wound clean from any saliva etc.
  3. rinse wound thoroughly
  4. cover with a clean dressing or if unavailable, a clean cloth or clothes
  5. take or send casualty to the hospital or to a health centre to be reassessed

For Snake or Spider Bites…

  1. limit casualty’s movements
  2. lower bitten area
  3. wash bitten area gently with soap and water to remove any saliva
  4. irrigate area but DO NOT RUB and DO NOT USE ANY TOURNIQUETS
  5. provide stabilisation of the bitten limb so that chemical absorption is slowed down

For Insect Stings…

  1. limit casualty’s movements
  2. remove any embedded sting or insect part by scraping the area gently with a credit card or a knife (using its blunt side)
  3. wash area gently with soap and water
  4. apply ice over stung area to promote vasoconstriction
  5. DO NOT USE ANY OINTMENTS
  6. monitor for signs of inflammation and/or infection eg. for Lyme Disease following a tick bite

For Jelly Fish Stings…

  1. irrigate stung area with white vinegar so as to stop the chemical reaction on the skin; if unavailable use sea water or saline to irrigate…DO NOT USE FRESH WATER!
  2. using forceps or tweezers remove any visible remaining tentacles from the skin’s surface
  3. monitor ABCs
  4. watch out for possible signs of anaphylaxis, envenomation, and shock

For Fish Stings…

  1. remove any visible remaining pieces of the fish’s stinger
  2. irrigate area with water
  3. immerse wound area in hot water for a minimum of 30 minutes so as to kill the enzymes found in the venom; this stops absorption and spreading of the venom throughout the body
  4. help casualty into a supine position, keeping immobilised the affected limb

For Sea Urchins…

In the case of sea urchins DO NOT ATTEMPT TO TAKE STINGERS OUT! Help the casualty to the hospital or health centre since a cream may be prescribed to help the skin expel any sea urchin remaining pieces.

For Contact Irritants…

  1. scrub and irrigate wound bed with sea water or saline water
  2. remove any visible debris
  3. cover wound if required
  4. monitor casualty for signs of infection such as swelling, redness, pus and fever, in which case encourage casualty to seek medical advice

Poisoning, Envenomation and Intoxication

environmental emergencies

Poisoning happens when one eats something poisonous, and in return gets poisoned.

Envenomation happens when venom penetrates the skin by means of a snake bite, scorpion sting, spider bite, or any other environmental factors. While venom is not always lethal, it can still lead to complications.

Intoxication happens when one self-ingests or self-injects a chemical, such as alcohol and drugs, which are toxic to the body and thus may cause severe consequences.

Poisoning, envenomation and intoxication can happen through 4 different modes of entry, namely through inhalation, ingestion, absorption, or injection.

Poisoning Signs & Symptoms

  • history
  • visible signs surrounding casualty eg. drug/poison containers, used syringes, drug-abuse related material
  • needle marks
  • animal bite marks

Respiratory Signs & Symptoms…

  • burns
  • odours
  • stains around mouth
  • coughing
  • dyspnoea
  • respiratory distress

Circulatory Signs & Symptoms…

  • sweating
  • fainting
  • shock
  • discomfort in chest area

Digestive Signs & Symptoms…

  • nausea and vomiting
  • abdominal discomfort and/or cramping
  • diarrhoea

Consciousness Signs & Symptoms…

  • headache
  • dizziness
  • drowsiness
  • confusion
  • altered level of consciousness
  • pupillary changes eg. dilation or constriction of the pupil/s

Poisoning First Aid

  1. use the S.A.F.E. approach
  2. if casualty is responsive, establish cause of poisoning, monitor, and be prepared to resuscitate if needed
  3. if casualty is unresponsive but breathing, put in recovery position
  4. if casualty is unresponsive and not breathing start CPR
  5. call 112 for medical assistance
  6. DO NOT ADMINISTER ORAL FLUIDS as that would dilute poison
  7. DO NOT INDUCE VOMITING
  8. DO NOT WASTE TIME trying to identify type of poison if uncertain
  9. DO NOT SUCK ANIMAL VENOM OUT OF WOUND
  10. DO NOT APPLY A TOURNIQUET or compression bandage

Alcohol & Drugs First Aid

  1. use the S.A.F.E. approach
  2. provide first aid for any injuries incurred
  3. if casualty is unresponsive but breathing, assist in recovery position
  4. if casualty is unresponsive and not breathing, resuscitate by performing CPR
  5. if casualty is responsive with altered level of response, call 112 for medical assistance since this indicates intoxication

Hyperthermia & Hypothermia Environmental Emergencies

environmental emergencies
Retrieved from https://www.mymed.com/diseases-conditions/hyperthermia on 10th October 2022

Temperature extremes a.k.a. hyperthermia and hypothermia can be incurred either through environmental exposure or else as a disease process. They are both considered to be environmental emergencies.

NOTE: For accuracy purposes, core temperature should always be measured either rectally or through the ear by infrared.

Thermoregulation factors include:

  • illness
  • awareness
  • age
  • nutrition
  • infection
  • substance misuse
  • environmental conditions

Hypothermia Indications

  • core temperature of 20 = increased risk for cardiac arrest
  • core temperature of 25 = increased risk of cardiac arrhythmias
  • core temperature of <30 = severe hypothermia
  • core temperature of 30-32 = moderate hypothermia
  • core temperature of 32-35 = mild hypothermia
  • temperature <35oc
  • cold pale skin
  • uncontrollable shivering which may eventually stop
  • rapid pulse which eventually decreases
  • slow breathing
  • cyanosis
  • slow and uncoordinated reflexes
  • altered level of consciousness
  • loss of consciousness
  • respiratory arrest
  • cardiac arrest

Hypothermia First Aid

  1. cover casualty and take any necessary environmental considerations
  2. assist into a comfortable position to reduce respiratory effort
  3. if available administer high-concentration oxygen
  4. call 112 and ask for an ambulance since hypothermia can only be properly treated in a hospital environment
  5. monitor casualty and be prepared to resuscitate if necessary

Hyperthermia Indications

  • temperature of >37 = pyrexia = risk of heat exhaustion
  • temperature of > 40.6 = hyperpyrexia = risk of heat stroke
  • temperature of > 42 = increased risk of irreversible brain injury

A casualty with heat exhaustion…

  • temperature of >37
  • sweating
  • thirst
  • headache
  • dizziness
  • nausea
  • vomiting
  • weakness
  • fainting
  • rapid pulse

A casualty with heat stroke…

  • temperature of >40
  • heat exhaustion signs as per above PLUS
  • disorientation
  • confusion
  • altered level of response
  • seizures

Hyperthermia First Aid

  1. assist casualty in a cool area to rest
  2. elevate casualty’s legs
  3. apply cold tepid sponging
  4. promote rehydration
  5. call 112 in case of severe heat exhaustion signs OR if symptoms do not lessen within 30 mins OR in case of heat stroke symptoms

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Sudden Acute Illness

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Illness can be categorised under either acute or chronic. Whilst chronic illness is long-lasting, potentially worsening over time, sudden acute illness happens suddenly with immediate or rapidly developing symptoms, which is why it usually requires immediate care.

Altered Level of Consciousness

Retrieved from https://www.nursingtimes.net/roles/hospital-nurses/patient-narratives-4-the-meaning-behind-communication-04-04-2016/ on 2nd October 2022

When normal brain activity is interrupted, a casualty may experience loss of awareness of their surroundings. At times the casualty may only show responsiveness when stimulated eg. through shaking, shouting, or pain stimulus.

Causes

  • hypoglycaemia – most common cause of unconsciousness
  • any issue with the airway, breathing or circulation leading to brain hypoxia
  • neurological issues (eg. CVA)
  • serious infection (eg. meningitis or infection in relation to the brain)
  • brain injury following trauma to the head
  • poisoning which affects the brain directly, or which leads to ABC compromise that induces brain hypoxia
  • other sudden acute illness eg. myocardial infarction

Signs & Symptoms of Neurological Issues

  • dizziness
  • disorientation
  • confusion
  • lethargy
  • drowsiness
  • low level of response
  • unequal pupil size
  • abnormal pupil reaction
  • limb weakness
  • unresponsiveness
  • seizures

NOTE: in CVA, limb weakness is commonly experienced on one side of the body.

A casualty’s level of consciousness is typically tested using the Glasgow Coma Scale, while the level of response is tested using the AVPU score.

Cerebrovascular Accident CVA

sudden acute illness
Retrieved from https://www.netmeds.com/health-library/post/strokecerebrovascular-accident-causes-symptoms-and-treatment on 2nd October 2022

A cerebrovascular accident is considered to be a sudden acute illness. It can happen in 2 ways:

  1. Haemorrhagic Stroke – a stroke which happens when weakened or deceased blood vessels rupture, causing blood leaks into the brain tissue
  2. Ischaemic Stroke – a stroke caused by a blood clot that stops the normal flow of blood to a part within the brain

Signs & Symptoms of Cerebrovascular Accident

  • sudden headache
  • blurred vision
  • facial asymmetry
  • drooling
  • slurred speech
  • numbness and/or weakness focused on one side of the body

First Aid for CVA

Retrieved from https://www.cedars-sinai.org/blog/stroke-strikes-act-fast.html on 2nd October 2022

In an unresponsive casualty:

  1. maintain ABCs
  2. assist into recovery position
  3. call 112
  4. monitor & provide reassurance

In a responsive casualty:

  1. assist in a comfortable position, preferably on a bed if available
  2. elevate head and shoulders to promote comfort and to minimise pressure
  3. incline head towards affected (drooling) side to avoid aspiration pneumonia
  4. loosen any tight clothing
  5. call 112
  6. monitor & provide reassurance

Hypoglycaemia

sudden acute illness
Retrieved from https://www.dailypioneer.com/2016/health-and-fitness/hypoglycaemia-cases-increased-by-39-per-cent-study.html on 2nd October 2022

Hypoglycaemia, which can be considered as a sudden acute illness, can be defined as a glucose concentration of 3.9mmol/l or below.

Signs & Symptoms of Hypoglycaemia

  • history of Type 1 Diabetes
  • weakness
  • fatigue
  • hunger
  • pale, cold, clammy skin (this side effect helps differentiate between hypoglycaemia and a CVA)
  • aggressiveness or unusual behaviour
  • possible speech slurring

First Aid for Hypoglycaemia

In an unresponsive casualty:

  1. maintain ABCs
  2. assist into recovery position
  3. call 112
  4. monitor & provide reassurance

In a responsive casualty:

  1. give sugary drink (you may mix 2 tsp sugar in a little bit of water) or assist with own medication if available (eg. glucose gel)
  2. provide privacy (casualty may become incontinent)
  3. provide reassurance
  4. monitor
  5. if condition improves encourage casualty to seek medical advice; if condition deteriorates call 112

Seizure

sudden acute illness
Retrieved from https://www.jems.com/special-topics/jems-con/know-differences-between-seizures-epilep/ on 2nd October 2022

A seizure is considered to be a sudden acute illness, however, it is not exactly an illness by itself, but a sign of another illness affecting the activity of the brain eg. fever, head trauma, cerebral hypoxia, epilepsy, etc.

Signs & Symptoms of a seizure

  • face twitching
  • lip smacking
  • individual limb spasm
  • uncontrollable muscle spasms
  • convulsions
  • staring spell
  • drooling or frothing at the mouth
  • abnormal sounds
  • tongue biting
  • incontinence

First Aid for Seizures

During a seizure:

  1. notice starting time of seizure and time its duration
  2. reduce injury risk – provide protection for the casualty’s head and remove any nearby items which may be of danger
  3. DO NOT RESTRAIN
  4. DO NOT PUT ANYTHING INTO THE CASUALTY’S MOUTH
  5. ensure casualty’s privacy especially due to possible incontinent episode
  6. apply tepid sponging in case of casualty being febrile

After a seizure:

  1. perform primary assessment and assist if necessary
  2. perform secondary assessment and assist if necessary
  3. manage ABCs
  4. assist in recovery position
  5. call 112
  6. monitor casualty’s condition

Fainting Episode

Retrieved from https://onewelbeck.com/cardiology/symptoms/blackouts-fainting/ on 2nd October 2022

Fainting is a circulatory condition affecting consciousness. Fainting can present as follows:

  • possible brief loss of consciousness
  • slow pulse
  • pale, cold, clammy skin

First Aid for Fainting

  1. remove tight clothing
  2. increase air circulation (eg. by opening windows)
  3. assist to the floor to prevent casualty from getting hurt in case of a fall
  4. elevate legs (approximately 30cm)
  5. maintain casualty’s body temperature so as to help keep a stable blood pressure
  6. provide privacy and reassurance
  7. monitor
  8. call 112 if required

Cerebral Infection

sudden acute illness
Retrieved from https://www.momjunction.com/articles/common-symptoms-of-meningitis-in-toddlers_0098491/ on 3rd October 2022

Signs & Symptoms

  • fever
  • stiffness in the neck area
  • sensitivity to light
  • signs of shock
  • non-blanching rash – press area covered by rash and let go…a rash that still shows points to a neurological infection eg. meningitis

First Aid for Cerebral Infection

Seek medical advice immediately by calling 112!

Dyspnoea

sudden acute illness
Retrieved from https://safarmedical.com/en/medical-articles/difficulty-breathing on 3rd October 2022

Dyspnoea is otherwise known as experiencing difficulty in breathing. Dyspnoea can happen due to various reasons:

  • Airway Obstruction
  • Cardiac & Circulatory Disorders
  • Respiratory Disorders affecting either the inhalation/exhalation process (eg. asthma), the lower airways, the diffusion process across the alveolar membrane, or the uptake of oxygen in pulmonary circulation (eg. anaemic patients)

Causes of Dyspnoea

  • asthma
  • pulmonary oedema – caused either by a cardiac problem or by accumulation of fluid in the alveoli within the lungs
  • hyperventilation syndrome – stress => hyperventilation => not feeling well => anxiety => increased hyperventilation => increasing symptoms (respiration rate of more than 30 breaths per minute; numbness)
  • chest infection
  • inhalation of fumes/chemicals
  • drowning syndrome
  • choking
  • strangulation or suffocation

Dyspnoea signs and symptoms

  • inability to speak
  • use of accessory muscles to breathe
  • abnormal respiratory rate and rhythm pattern
  • noisy breathing
  • cyanosis
  • disorientation, confusion, or unusual aggressiveness – these are classic signs of cerebral hypoxia irrespective of its cause

First Aid for Dyspnoea

  1. provide reassurance to reduce anxiety and increased symptoms
  2. encourage good breathing pattern
  3. increase ventilation in casualty’s area
  4. help sit up properly
  5. release tight clothing
  6. if casualty is on medication eg. inhalers, assist with self medication
  7. call 112
  8. monitor casualty and be prepared to resuscitate if need be

Foreign Body Airway Obstruction (FBAO)

first aid for compromised airway

Foreign Body Airway Obstruction can manifest in two ways: foreign bodies may cause partial, or complete airway obstruction.

Signs & symptoms of foreign body airway obstruction

In mild (partial) airway obstruction, the casualty is able to speak and cough.

In severe (complete) airway obstruction, the casualty:

  • is unable to speak or cough
  • has noisy breathing (wheezing)
  • shows signs of severe dyspnoea
  • shows signs of distress
  • may be or become unresponsive

First Aid for Foreign Body Airway Obstruction

In a conscious patient:

  1. 5 back blows followed by 5 abdominal thrusts
  2. continue, alternating between the two methods until either foreign body gets dislodged, or else casualty becomes unresponsive

In an unconscious patient:

  1. start CPR

NOTE: in casualties who are either obese, pregnant, or children, do not perform abdominal thrusts…instead do chest thrusts; after the intervention, the casualty should be taken to hospital to be assessed for possible internal damage.

Chest Pain

sudden acute illness

Chest pain can result due to Ischaemic Heart Disease – a disease in which there is an obstruction of blood flow to an area within the heart which causes hypoxia and death of that particular area in the heart.

Signs & Symptoms of Acute Ischaemia

  • feeling generally unwell
  • pale and cold skin
  • profuse sweating
  • feeling persistent pain or heaviness in the chest
  • chest pain may radiate to the left arm, jaw and back
  • may experience palpitations
  • may experience nausea
  • dyspnoea

First Aid for Acute Ischaemia

  1. provide reassurance
  2. ensure surrounding area is well ventilated
  3. assist in a sitting position
  4. release any tight clothing
  5. assist with own medication if available on casualty eg. 300mg of aspirin
  6. call 112
  7. ask someone to get an AED
  8. monitor
  9. be prepared to resuscitate if need arises

Anaphylaxis & Anaphylactic Shock

sudden acute illness
Retrieved from https://homeopathy.ae/article/anaphylaxis-dangerous-allergy on 7th October 2022

Anaphylaxis happens when a person comes into contact or exposure to an allergen.

Signs & Symptoms of Anaphylaxis

  • changes within the skin and mucous membranes eg. rash, burning sensation, swelling of the mouth and tongue
  • sudden illness development
  • rapid ABC deterioration eg. swelling of airway structures, altered level of consciousness, dyspnoea, wheezing, cyanosis, dizziness & weakness (neurological response)

NOTE: If a casualty experiences all the above PLUS signs of shock (including pale, clammy skin), the indication would be an ANAPHYLACTIC SHOCK, which is even worse than anaphylaxis!

First Aid for Anaphylaxis & Anaphylactic Shock

  1. identify cause (eg. if cause was an insect sting, remove it)
  2. if unconscious, resuscitate
  3. if unresponsive but breathing, assist into the recovery position
  4. if patient is responsive, assist in a supine position UNLESS patient is exhibiting signs of shock, in which case, elevate legs, OR if experiencing severe dyspnoea, in which case assist in fowlers position or elevate back as much as possible
  5. administer high concentration of oxygen
  6. if an epipen is available on the casualty and the casualty is responsive, administer, assist in self injecting Epinephrine

NOTE: Epinephrine helps DECREASE severity of anaphylaxis, EASE bronchospasms due to causing bronchial airways to dilate, and REDUCE circulatory collapse through a triggered increase in cardiac contraction as well as reversal of peripheral vasodilation.


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First Aid for Trauma to Specific Body Sites

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The way first aid for trauma is delivered differs based on which specific body site was affected in the injury.

Trauma related to the musculoskeletal system (bones, joints, muscles, ligaments, and tendons) include the following:

  • FRACTURES: when the continuity of the bone is disrupted, influencing its function
  • DISLOCATIONS: when the normal structure of a joint is disrupted, causing a difference in the shape, posture, and movement related to it
  • SPRAINS : overstretching a ligament, influencing the movement of the area
  • STRAINS: overstretching a muscle or tendon

Patient Assessment

  1. Conduct primary assessment using the S.A.F.E. and D.R. A.B.C. approach
  2. Attend to unconsciousness, serious bleeding, and cardiac arrest
  3. Position patient in a comfortable position with caution
  4. Perform secondary assessment and provide first aid for main complaint
  5. Look for D.O.T.S. – deformities, open wounds, tenderness, and swelling
  6. Take vital signs – pulse and respiratory rate especially if casualty is in a lot of pain
  7. Take S.A.M.P.L.E. history
Retrieved from https://www.alsg.org/fileadmin/temp/Specific/Ch04_BLS.pdf on 3rd September 2022
Retrieved from https://www.alucansa.com/showroom/?ss=5_6_4_26_36&pp=basic+first+aid+training&ii=2293819 on 5th September 2022
Retrieved from https://explorefirstaid.com/what-does-dots-stand-for-in-first-aid/ on 28th September 2022
Retrieved from https://www.slideserve.com/carter/baseline-vital-signs-and-sample-history on 4th September 2022

First Aid for Fractures

trauma
Fractured Femur, Broken thigh x-rays image – Retrieved from https://www.oaidocs.com/2019/02/22/why-you-may-need-surgery-for-a-fracture/ on 28th September 2022

Signs & Symptoms of a fracture

  • history in relation to the injury
  • loss of function
  • locked joint
  • abnormal movement
  • exposed musculoskeletal fragments
  • signs of pain, tenderness, and area guarding
  • swelling, bruising, deformity, or crepitus (popping, clicking or cracking sounds in a joint)

Fracture Complications

  • bleeding
  • loss of function
  • instability
  • injury to the covering soft tissue
  • limb loss – amputation

First Aid for Fractures

  1. provide support to the fractured area
  2. expose injury site (eg. remove shoes)
  3. touch the area to assess sensation
  4. test circulation within the injured limb by pressing on area and determining whether normal colour is restored in 2 seconds
  5. address bleeding and cover wound
  6. immobilise area
  7. following any intervention on the area, reassess sensation and circulation
  8. reassure casualty
  9. seek medical help

First Aid for Sprains

trauma
Retrieved from https://orthoinfo.aaos.org/en/diseases–conditions/sprained-ankle/ on 28th September 2022

Signs & Symptoms of a Sprain

  • pain, swelling and bruising
  • inability to use limb appropriately

NOTE: signs and symptoms of a sprain are very similar to a fracture…if in doubt, treat as a fracture!

First Aid for Sprains & Strains

  • follow the R.I.C.E. acronym…
  • R – rest (and remove footwear)
  • I – use ice packs on area for not more than 10 minutes to reduce pain and swelling
  • C – compress using bandage
  • E – elevate affected limb
trauma
Retrieved from https://twitter.com/spinalogy/status/759244714583396352?lang=hr on 28th September 2022

Trauma Amputation First Aid

trauma
Retrieved from https://www.jenonline.org/article/S0099-1767(05)00152-2/fulltext on 28th September 2022

First Aid on Stump

  1. control bleeding
  2. address shock
  3. irrigate area using saline water or water
  4. remove gross debris
  5. apply dressing
  6. elevate limb
  7. ensure casualty comfort and reassurance

Care for Amputated Part

  1. remove gross debris
  2. wrap in a saline-moisted gauze
  3. place in a plastic bag
  4. store in a container with ice and water, ensuring that ice does not come into direct contact with severed part
  5. DO NOT CLEAN OR WASH AMPUTATED PART WITH WATER!

Trauma to the Head, Neck & Back

Retrieved from https://medicine.wustl.edu/news/new-guidance-developed-for-children-hospitalized-with-mild-head-trauma/ on 30th September 2022

If a casualty falls from a height at least double his or her own weight, head injury should be suspected, even if there are no visible signs and symptoms. In such case, head injury should only be excluded following medical investigations.

Possible Head Trauma Consequences

  • surface injury – bruising or actual wounds
  • skull fracture – leading to lack of protection to the brain
  • facial fracture – causes bleeding and possible bone fragments which may lead to airway obstruction
  • brain injury – may lead to epidural & subdural haematoma as well as intracerebral haematoma
  • intracranial bleeding – eg. subarachnoid haemorrhage in the brain
  • concussion – soft tissue damage to the brain without evident bleeding

Indications

  • history of head trauma
  • headache
  • dizziness
  • nausea
  • vomiting
  • limb weakness and/or loss of sensation (may be a sign of neurological damage)
  • disorientation and/or confusing
  • altered level of response
  • seizures

Further signs may include:

  • unequal and/or unresponsive pupils
  • ecchymosis (racoon eyes)
  • battle’s sign (bruising around the eyes or behind the ear
  • rhinorrhoea (bleeding or clear liquid emerging from the nose)
  • otorrhoea (bleeding or clear liquid emerging from the ear/s)
  • halo sign (can be seen on the bedsheet under a casualty’s head)
  • abnormal posture (eg. stretching, flexing etc)

Assess further for…

  • intoxication (ask relatives if available, and look for obvious intoxication signs)
  • evidence suggesting a possible suicide attempt
  • casualty’s age (risks increase when over 65 years of age)
  • current treatments eg. anticoagulants
  • history of coagulation disorders

First Aid for Head Trauma

NOTE: prior to first aid, consider possible trauma to the cervical spine and neck…signs include an altered level of response, pain and/or tenderness, weakness, or loss of sensation in the neck/back area.

  1. if casualty is unresponsive and not breathing, perform CPR
  2. use sterile or, if unavailable, clean dressings for head wounds
  3. in case of severe facial trauma clear casualty’s mouth from foreign material, blood and fragments
  4. in case of eye injuries, DO NOT REMOVE any embedded fragments; just cover both eyes
  5. apply ice packs on haematomas for a maximum of 15 minutes
  6. apply pressure ALWAYS with caution
  7. elevate the casualty’s head and shoulders

IMPORTANT: manually stabilise the head and neck, maintaining alignment to avoid complications or further damage.

Trauma to the Neck & Back

  1. prevent movement of the casualty’s head and neck
  2. use the jaw-thrust technique to open the airway of an unresponsive casualty
  3. turn the casualty using the log-roll method to perform a secondary assessment or for putting into the recovery position OR
  4. use the Haines recovery position if log-roll method cannot be used

Trauma to the Chest

Retrieved from https://www.distancecme.com/chest-wall-trauma-field-ready-facts-and-treatments/ on 30th September 2022

Complications

Trauma to the chest may lead to complications such as:

  • rib fracture
  • flail chest – consists of 2 or more broken ribs
  • pneumothorax – air trapped in chest that compresses the lung causing a collapsed lung, whilst also pressing onto the heart; evident in an x-ray as a dark space in the lungs; visually evident as chest asymmetry during breathing
  • haemothorax – same as a pneumothorax, except that blood is trapped in the chest instead of air
  • cardiac tamponade – build-up of blood between the pericardium and the myocardium which increases pressure on the heart, causing obstructive shock

Signs of Chest Trauma

  • history of trauma to the chest
  • severe pain
  • severe dyspnoea
  • bruising
  • open chest wound
  • shock

First Aid for Chest Trauma

  1. leave any foreign bodies embedded in the chest – DO NOT REMOVE!
  2. leave chest wound uncovered if not bleeding
  3. if chest wound is oozing blood, cover with a non-occlusive dressing such as a gauze swab and apply pressure with caution
  4. stabilise affected chest side with an arm sling
  5. if possible, help casualty into a semi-sitting position, supporting the back
  6. if available, administer high-concentrated oxygen
  7. if oxygen is unavailable open windows to increase air circulation

Trauma to the Abdomen

Retrieved from https://www.lecturio.com/concepts/penetrating-abdominal-injury/ on 30th September 2022

Complications

  • bleeding
  • shock

First Aid for Abdominal Wounds

  1. leave any foreign bodies embedded in the abdomen – DO NOT REMOVE!
  2. cover wound with moist sterile dressing
  3. if there are any visible protruding organs DO NOT PUSH BACK INSIDE as this may cause further complications and damage

First Aid for Abdominal Trauma Without Visible WOunds

  • assist casualty in a comfortable position, preferably with legs pulled towards the abdomen
  • monitor for deterioration
  • address shock if evident

Fractured Pelvis & Hips

Retrieved from https://www.healthpages.org/health-a-z/hip-fracture-older-adults/ on 30th September 2022

Signs & Symptoms

  • history of trauma to the pelvis or the hips
  • pain and tenderness
  • swelling
  • bruising
  • wounds
  • deformity
  • shortening/external rotation
  • unable to bear weight

First Aid for the Pelvis and Hips

  1. limit casualty’s movement of the back, the pelvis, and the lower limbs
  2. control external bleeding
  3. splint open fractures or use body splinting for lower limbs
  4. monitor for shock and provide first aid for shock if necessary

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First Aid for Compromised Airway

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Compromised airway can result from three issues, namely obstruction, constriction, or trauma.

  • Obstruction can happen through tongue positioning, foreign body, vomiting, or aspiration
  • Constriction a.k.a. swelling can happen in the mouth, by the tongue, or due to airway structures
  • Trauma can be either maxillo-facial (trauma to the jaw and face) or mandibular (trauma to the lower jaw)

Assessment for Compromised Airway

1. look

Watch out for accessory muscle use, tracheal tug, or paradoxical (see-saw) chest-abdo movements…

2. Listen

Can you hear any gurgling, stridor, snoring or hoarseness coming out of the casualty’s mouth?

3. feel

Can you feel air moving in and out of the casualty’s mouth or nose?

First Aid for Compromised Airway by Foreign Bodies

If a person coughs excessively whilst eating, keep a hands-off approach and encourage the person to cough. Coughing signifies that air is still going in and out of the lungs, thus, encourage to deep breathe and cough as hard as possible to cough out the obstructed foreign body.

If the person is not coughing, or coughing is ineffective, follow the 3 first aid maneuvers for compromised airway by foreign body listed below:

Back Blows

  • give up to 5 back slaps – hit back from low direction upwards (least effective, least damaging)

Abdominal Thrusts

  • perform up to 5 abdominal thrusts (moderately effective, moderately damaging – may cause organ rupture)

Chest Thrusts

  • perform up to 5 chest thrusts (most affective, most damaging – casualty needs to be taken to hospital following chest thrusts to have internal organs checked due to possible damage)

NOTE: If obstruction doesn’t get cleared out, the casualty eventually collapses. At this point perform CPR and before giving mouth-to-mouth check inside the mouth to see if object has dislodged with compressions.

Paediatric Compromised Airway

  • Babies usually deal with choking on their own, without needing first aid
  • DO NOT perform abdominal thrusts on infants, since doing so may cause liver rupture. Instead, perform chest thrusts and back blows

Narcan (Naloxone)

Narcan (Naloxone) is a medication used to block the effects of opioids. It is commonly used in the case of decreased breathing triggered by opioid overdose such as in heroin overdose.

Naxolone may be combined with an opioid to decrease the risk of opioid misuse.

Retrieved from https://www.princeedwardisland.ca/en/information/health-and-wellness/preventing-opioid-related-overdoses on 27th September 2022
Retrieved from https://rightpathaddictioncenters.com/opiate-withdrawal/ on 27th September 2022

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First Aid for Wounds and Burns

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Wounds are skin breakages caused by injury. Complications in relation to wounds include bleeding and infection.

Types of Wounds

  • incision – a cut, such as one made with a knife
  • laceration – pulled off skin
  • abrasion – wound caused by friction
  • contusion – a.k.a. bruising
  • puncture wound – wound caused by a pointy object eg. nail
Retrieved from https://emedicodiary.com/que/437/wound on 20th September 2022

First Aid for Traumatic Wounds

There are 3 concepts required in providing immediate care for traumatic wounds:

  1. control the bleeding
  2. clean the wound
  3. protect the wound

1. Control the Bleeding

  • Step 1: wear gloves to protect self from casualty’s blood
  • Step 2: control the bleeding
  • Step 3: assess for shock & if suspected, provide first aid for shock
  • Step 4: call 112 for assistance

2. Clean The Wound

  • Step 5: once the bleeding is under control, irrigate the wound with running water
  • Step 6: remove gross debris

3. Protect The Wound

  • Step 7: cover wound with a clean cloth or sterile dressing if available
  • Step 8: seek medical advice as required

NOTE: DO NOT remove any foreign objects embedded in wounds! Such objects need to be removed in a hospital setting, with adequate pain relief. If foreign object is embedded, apply bandaging to hold it in place until casualty arrives at the hospital.

First Aid for Particular Types of Wounds

Fracture site wounds

If there is a visible fracture at the injury site, or a fracture is suspected, do not apply a lot of pressure to stop the bleeding since this would cause a lot of pain, as well as create further problems with the fracture. In such case you can still irrigate the wound by running water.

Thoracic Wounds

When dealing with thoracic wounds, do not apply too much pressure to stop the bleeding. Additionally, leave the chest wound uncovered. You may clean the area surrounding the wound, but there is no need to irrigate the wound with running water.

Abdominal Wounds

If an injury to the abdomen causes the intestines to be pushed out of the abdomen, do not attempt to push them back inside the casualty, as this may cause serious damage. Instead, use a moist sterile cloth and cover the intestines, or else leave the intestines uncovered and wait for the ambulance to arrive.

Burns

Burns occur when the body is exposed to thermal, chemical, or electrical energy which leads to skin loss and damage to the underlying tissue. Complications arising from burns include tissue damage, fluid loss, heat loss, and infection.

Types of Burns

  • thermal burns – flames, hot objects, flash burns, radiation, hot liquids, and steam burns
  • chemical/corrosive burns
  • electrical burns – caused by electric conduction which usually causes 2 wounds: a small entry wound and a larger wound at the earthing area; electrical burns can easily cause a cardiac arrest!

The severity of an injury caused by a burn depends on factors such as the site of injury, the depth and extent of injury, the cause, as well as the casualty’s age, prior health status and additional injuries.

Burn Depth

1. Superficial Burn

In a superficial burn, the burn affects only the epidermis of the skin. Signs of a superficial burn include:

  • pain
  • redness
  • blanches with pressure
  • absent oedema

2. Partial Burn

In a partial burn, the burn affects both the epidermis and the dermis. In such burns, blisters may appear, which are fluid-filled located between the epidermis and the dermis. NEVER burst a blister unless in a hospital setting! Signs of a partial burn include:

  • pain
  • blisters
  • moisture

3. Full Burn

In a full burn, the burn uncovers the structure of the affected area – structures such as muscles and bones. Nerves are usually burned in these types of burns, which causes the casualty to experience no pain sensation. Signs of a full burn include:

  • uncovered structures
  • discolouration
  • dryness
  • absent pain
Retrieved from https://suprathelu.com/row/ on 20th September 2022

Measuring the Extent of a Burn

  • Method #1: The Palmar Method
  • Method #2: The Rule of 9’s
Retrieved from https://twitter.com/hp_ems/status/1421585002073149445 on 20th September 2022

Managing Burn Injuries

In burn injuries the main aims are to:

  • reduce pain
  • reduce the burning process
  • protect the injury
  1. cool burn down with running water
  2. remove ALL burnt clothing
  3. cover burned area with a moist dressing and keep it wet so it doesn’t stick to the burnt area
  4. if a moist dressing is not available, cover the area with plastic film
  5. seek medical attention
  • DO NOT use any creams to treat burns.
  • DO NOT use ice to calm down the burning sensation as ice can cause a burn too.
  • DO NOT remove any clothing that is seemingly stuck to the burnt area.

First Aid for Other Types of Burns

Electrocution burn

Whilst an electrocuted casualty may not experience a cardiac arrest immediately, it is still possible after some time. Thus, if the casualty complains of chest pain and dyspnoea, get ready to resuscitate as a cardiac arrest may become quite possible.

Liquid chemical burn

If a casualty experiences a liquid chemical burn, flood burned area with water.

Dry Powder Chemical Burn

In the case of dry powder chemical burns, brush dry powder off, making sure it is still safe for you, and then flood with water.

NOTE: Inhaling hot or chemical fumes causes burns within the airway and the lungs. Thus, a casualty experiencing inhalation in such cases should go to the hospital for treatment as soon as possible.


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Bleeding and Shock First Aid

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In the acronym DR ABC, C stands for circulation. Signs of circulation compromise to watch out for include bleeding or shock symptoms.

The Human Circulatory System

The human circulatory system comprises of the heart, the blood vessels, and the blood. All these components need to be working efficiently so that every tissue within the body is supplied with oxygenated blood.

Shock Causes

A decrease in blood pressure and SPO2 indicate circulatory failure – the brain is slowly dying due to lack of oxygen, and so, it triggers a defense mechanism: SHOCK.

Any issue affecting the heart, the blood vessels, or the blood volume, may lead to a decrease in the body’s blood circulation, leading to a reduction in blood pressure and volume, which in return cause a decrease in tissue perfusion.

Decreased Cardiac Output = Decreased Circulating Volume & Pressure = Reduced Venous Return

Types of shock include:

  1. cardiogenic shock
  2. obstructive shock
  3. neurogenic shock
  4. septic shock
  5. anaphylactic shock
  6. hypovolaemic shock

Causes of shock can be divided into 3 categories:

1. Decrease in the Pumping Action of the Heart

A drop in cardiac output can result in a:

  1. Cardiogenic Shock – this may happen due to a heart defect or disorder (cardiogenic = issue originating from the heart itself) eg. Congestive Heart Failure (CHF) or Ischaemic Heart Disease (IHD);
  2. Obstructive Shock – this may happen due to cardiac compression in cases such as in cardiac tamponade (bleeding within the pericardial space) and tension pneumothorax (air accumulation in the pleural space which compresses the lungs and decreases venous return to the heart).

2. Blood Vessel Dilation

Following vasodilation, which refers to the dilation of the blood vessels, a casualty can suffer a distributive shock:

  1. Neurogenic Shock – happens following a spinal injury, head injury, or opiate overdose;
  2. Septic Shock – happens following a severe infection which causes the casualty’s blood pressure to drop to a dangerously low level;
  3. Anaphylactic Shock – happens following a severe allergic reaction

NOTE: due to a biochemical process in the body, chemicals released cause vasodilation, which then causes either a septic shock or an anaphylactic shock.

3. Blood or Fluid Loss

Severe bleeding or severe dehydration can lead to a hypovolaemic shock. This happens due to the drop in blood volume.

Progressive Shock Clinical Indicators

  • initial weak rapid pulse that eventually becomes thready or absent (body increases heart rate to compensate due to lack of blood; eventually, drop in cardiac output = drop in stroke volume = weak heartbeat)
  • initial rapid irregular breathing that eventually becomes laboured and dyspnoeic
  • initial pale skin that eventually becomes cold, clammy and mottled (happens since the body compensates lack of oxygen circulation by sending it in the most important areas rather than in the extremities)
  • cyanosis – signifies established hypoxia
  • weakness and fatigue – signifies cerebral hypoxia (lack of oxygen in the brain)
  • confusion and disorientation
  • altered level of response leading to unresponsiveness…casualty is now at risk of cardiac arrest!

Shock First Aid

  1. identify cause of shock
  2. control cause of shock
  3. assist casualty in shock position – elevate legs by about 30cm to increase venous return; if casualty is conscious but dyspnoeic, a semi-sitting position helps provide better breathing
  4. maintain casualty’s body temperature – this helps in avoiding hypothermia, which would disrupt an open wound’s clotting process, leading to longer bleeding time
  5. administer high-concentrated oxygen if available
  6. increase ventilation by opening windows if inside
  7. call 112 for assistance
  8. monitor casualty for deterioration – if casualty is in recovery position, attempt to maintain shock position i.e. elevated legs, if possible
  9. provide reassurance at all times
bleeding and shock
Retrieved from https://persysmedical.com/blog/hypothermia-prevention/trauma-triad-of-death/ on 18th September 2022

NOTE: The term vasoconstriction refers to constriction of the blood vessels. It can be clinically indicated in blood pressure results that show a difference of about 20 only between the systolic and diastolic readings. In such case, the pulse is weak or not palpable.

Bleeding

Bleeding amount depends on what it is originating from:

  • ARTERIES – spurting blood, pulsating flow, bright red colour
  • VEINS – steady, slow blood flow, dark red colour
  • CAPILLARIES – slow and even flow

Bleeding severity depends on the injury body site, blood loss volume, time frame of blood loss volume, casualty’s age (worse in children and the elderly), and casualty’s health status prior to the injury.

Catastrophic bleeding refers to bleeding in which 30% of blood volume is lost. Such bleeding takes priority over Airway and Circulation in the DR ABC acronym.

The major consequence of blood loss is a hypovolaemic shock (explained further up). During this type of shock, the heart becomes unable to pump enough blood throughout the body due to severe blood or fluid loss. This leads to organs shutting down.

External Bleeding First Aid

  1. wear gloves to protect self
  2. control bleeding through direct pressure or using a pressure dressing
  3. monitor and provide first aid for shock

Notes:

  • In bleeding circumstances without signs of shock, elevation is not recommended anymore.
  • Indirect pressure (pressing on arteries eg. on femoral or brachial artery) is not a recommended bleeding control technique anymore.
  • If direct pressure method fails, you may use an emergency bandage, tourniquet, or haemostatic agents, all of which require prior specific training.
  • In catastrophic bleeding first aid, one may pack the wound with a towel. Worrying about an infection is not a primary concern at this point, since catastrophic bleeding may lead to loss of life.
  • Haemostatic Agents can be poured on wounds to stop catastrophic bleeding. Only materials specifically prepared for bleeding purposes may be used
  • A tourniquet is a device that helps apply pressure to a limb or extremity to limit the flow of blood. It may be used in emergency situations, during surgery, or in the post-operative rehabilitation period.
  • Normal use tourniquets are orange in colour, while the Combat Application Tourniquet (CAT) is usually black.

Internal Bleeding

Internal bleeding may be caused as a disease process eg. due to a stomach ulcer, or trauma.

Common sites of serious internal bleeding include the head, the chest, the abdomen and pelvis.

Internal bleeding is more difficult to diagnose, since it usually doesn’t show. The worst type of internal bleeding happens in the pelvic area, right in the retroperitoneum.

Recognition of internal bleeding may be done through:

  1. History
  2. Signs & Symptoms
  3. Pain & Tenderness
  4. Revealed Internal Bleeding (eg. internal bleeding in the head may produce trickling blood out of orifices such as from the ear)

Types of Internal Bleeding:

  • Otorrhoea – blood coming out of the ear
  • Rhinorrhoea – blood coming out of the nose
  • Haemoptysis – coughed out blood
  • Haematemesis – vomited blood
  • Haematuria – bleeding in the urine
  • Rectal Bleeding – bleeding coming out of the intestines
  • Bruising
Retrieved from https://psnet.ahrq.gov/web-mm/coming-undone-failure-closure-device on 18th September 2022

NOTE: If there is suspicion of internal bleeding, it NEEDS TO BE ASSUMED! Monitor for ABC compromise and signs of shock, and provide first aid as needed!


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Sudden Cardiac Arrest CPR & AED Basic Life Support

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A sudden cardiac arrest is a sudden cessation of the pumping action of the heart.

A sudden cardiac arrest is NOT the same as a Myocardial Infarction (heart attack), which occurs when the blood flow to the heart (or part of) decreases or stops, causing damage to the cardiac muscle. A Myocardial Infarction usually produces symptoms such as chest pain, or discomfort traveling into the shoulder, arm, back, neck, or jaw.

In Cardiovascular Disease a.k.a. Heart Disease, narrowed or blocked blood vessels may lead to a Myocardial Infarction, angina, or a stroke.

Sudden Cardiac Arrest ~ Facts

  • A Myocardial Infarction may lead to a sudden cardiac arrest
  • Heart disease is the most common cause of a sudden cardiac arrest
  • Individuals who suddenly fall and die eg. during shopping, swimming, running etc are presumed to have experienced a sudden cardiac arrest
  • 40% of the total amount of deaths of individuals less than 75 years of age are attributed to individuals suffering a sudden cardiac arrest without knowing that they have a cardiovascular disease

What Happens During a Sudden Cardiac Arrest?

  1. the heart stops beating in an effective way
  2. breathing stops
  3. blood flow within the body stops
  4. oxygen supply to the body’s organs stops
  5. the heart and the brain suffer irreparable damage
  6. the individual dies

CPR & AED Use For Sudden Cardiac Arrest

A Sudden Cardiac Arrest is identified right away during the primary assessment:

  • casualty is unresponsive
  • casualty is not breathing

DO NOT SPEND MORE THAN 10 SECONDS DOING THE ABOVE…TIME IS CRUCIAL!

  • 4 minutes post start of a Sudden Cardiac Arrest, brain damage starts to take place;
  • 10 minutes post start of a Sudden Cardiac Arrest, brain is dead.

NOTE: Do not confuse agonal breathing with normal breathing. During agonal breathing, the casualty’s chest doesn’t rise and fall. Agonal breathing is not breathing…it is in fact just a reflex.

How To Perform Artificial Ventilations

To perform artificial ventilations on adult casualties:

  1. pinch nose
  2. open airway
  3. take a normal breath
  4. seal your lips around the casualty’s mouth
  5. blow air in until the casualty’s chest rises
  6. allow the casualty’s chest to fall back
  7. repeat

To perform artificial ventilations on children and infants follow the above BUT seal your lips around both the casualty’s mouth AND nose.

The AED: Automated External Defibrillator

Contrary to what is believed by many, an AED’s shock doesn’t restart the heart. About 65% of casualties suffering a sudden cardiac arrest present with an abnormal cardiac rhythm known as ventricular fibrillation, where the heart quivers rather than beats as normal. This rhythm is fatal unless proper treatment is provided in a timely manner. A normal sinus rhythm can be restored following ventricular fibrillation by proper pressure through:

  1. Early CPR
  2. Early AED

Adult Basic Life Support Sequence

If casualty is unresponsive:

  1. open casualty’s airway using the head-tilt chin lift technique
  2. look, listen, & feel for breathing signs
  3. if unresponsive and not breathing call 112 or ask someone to do so & send for an AED
  4. start CPR (30 chest compressions : 2 breaths)
  5. aim for a chest compression rhythm of approximately 2 compressions per second using 2 hands (fingers interlocked) aiming for the middle of the breastbone and a depth of 5-6cm, allowing full chest recoil after each compression
  6. breaths should amount to approximately 1 second each
  7. remember to protect yourself from any vomit/bleeding by using available devices – face sheet & gloves
  8. use an AED if or when available whilst following its verbal instructions (continue CPR unless instructed by AED to not touch the patient)

Stop CPR if help arrives, if the casualty starts breathing again, if the scene becomes dangerous, or if you become too tired and there is no one else who can substitute you.

Infants & Children Basic Life Support Sequence

Paediatric guidelines are as follows…

In the case of individuals responsible for children such as paediatric nurses, educators following special cases, etc. and trained in paediatric basic life support:

  1. open child’s airway using the head-tilt chin lift technique
  2. look, listen, & feel for breathing signs
  3. give 5 rescue breaths
  4. if phone is promptly reachable call 112 immediately while starting CPR
  5. if phone is NOT promptly reachable do 1 min CPR before leaving to fetch a phone
  6. perform paediatric CPR doing 15 compressions : 2 ventilations
  7. use 1 hand for chest compressions in children up to 8 years of age and 2 hands in largely built children
  8. rate of compressions should be approximately 2 per second (100 – 120 per minute)
  9. depth of compression should be 1/3 of chest but never deeper than 6cm
  10. each breath should be approx 1 sec long providing an effective chest rise
  11. remember to protect yourself from any vomit/bleeding by using available devices – face sheet & gloves
  12. use an AED if or when available whilst following its verbal instructions (continue CPR unless instructed by AED to not touch the patient); IMPORTANT – on a child, one electrode is placed on the front of the chest, and the other is placed on the back, both parallel to each other

NOTE: INFANTS <1 YEAR = 15 chest compressions : 2 breaths (use 2 fingers only on lower half of breastbone); each breath should be approx 1 sec long providing an effective chest rise. IMPORTANT – cover mouth and nose with mouth for an effective breath but do not over-do it!

For those not trained in paediatric BLS or not confident enough, adult basic life support technique should be used, ideally giving 5 rescue breaths before calling for assistance.

Stop CPR if help arrives, if the casualty starts breathing again, if the scene becomes dangerous, or if you become too tired and there is no one else who can substitute you.

Cardiac Pump Theory VS Thoracic Pump Theory


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First Aid Principles

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As mentioned in our introduction to first aid blogpost, the most important first aid principles include preserving life, preventing complications, and promoting recovery. It is as important however to mention that in the case of danger to self, first aid may just be about calling for further assistance. You should avoid ending up a casualty yourself!

Hereunder we are going to cover some of the most common scenarios where first aid principles can be applied…

Unresponsive but Breathing Casualty

A person can become unresponsive when there is an interruption of normal brain activity. This leads to loss of awareness. Common conditions that may cause unresponsiveness include:

  • ABC compromise that leads to hypoxia
  • hypoglycaemia which leads to neuroglycopaenia (lack of glucose in the brain)
  • trauma to the head (brain)
  • poisoning (self-inflicted poisoning, drug use, or poisoning through bites)
  • infections leading to life-threatening situations such as sepsis
  • illnesses/conditions such as a suffering a Myocardial Infarction
  • certain neurological disorders such as meningitis

First Aid Principles

  1. open airway
  2. check breathing
  3. deal with any visible bleeding rapidly
  4. perform a rapid head-to-toe assessment
  5. remove any restrictive clothing whilst maintaining dignity where possible
  6. place in the recovery position
  7. attempt to maintain normal body temperature
  8. attempt a secondary assessment based on what you can see and information you can gather from bystanders or present relatives
  9. call emergency 112
first aid principles
Retrieved from https://www.firstaidforfree.com/what-is-the-recovery-position-in-first-aid/ on 8th September 2022

Casualty Experiencing a Fainting Episode a.k.a. Brief Loss of Consciousness

Fainting a.k.a. syncopal episode or syncope is typically triggered by a sudden loss of blood flow to the brain, leading to loss of consciousness and loss of muscle control. Fainting is characterised by:

  • pale, cold, clammy skin (signalling lack of blood circulation)
  • slow pulse
  • usually regains consciousness again after a couple of seconds

First Aid Principles

Once casualty regains consciousness following a fainting episode:

  1. remove tight clothing
  2. elevate casualty’s legs to ensure better circulation and promote blood flow and oxygen to the brain
  3. ensure that the area is ventilated well
  4. identify possible cause
  5. maintain casualty’s body temperature
  6. provide reassurance
  7. monitor ABCs
  8. call for medical assistance as required

NOTE: following a fainting episode, tell the casualty to stand up very slowly so as to avoid recurrence.

Casualty Experiencing a Seizure

While seizures can result due to a disorder, they can be triggered by issues affecting the brain’s normal activity, such as in cerebral hypoxia (lack of oxygen in the brain), fever, and head trauma. Signs of a seizure include:

  • face twitching
  • lip smacking
  • staring spells
  • drooling / frothing at the mouth
  • producing abnormal sounds such as snoring and grunting
  • spasms that usually affect an individual limb
  • uncontrollable muscle spasms
  • convulsions

First Aid Principles

  1. start timing the seizure
  2. protect the casualty’s head by cushioning it
  3. provide protection from any possible danger
  4. remove any restrictive clothing if possible, maintaining patient dignity
  5. DO NOT RESTRAIN CASUALTY
  6. DO NOT ATTEMPT TO PUT ANYTHING IN THE CASUALTY’S MOUTH
  7. note time when seizure stops
  8. provide first aid as mentioned further above in the Unresponsive but Breathing Casualty section after seizure stops

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ERC Guidelines 2021 Excerpts on Adult Basic Life Support

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The European Resuscitation Council has produced updated ERC Guidelines 2021 on adult basic life support with the aim of increasing confidence and encouraging individuals to act immediately when witnessing a cardiac arrest. Unfortunately, to this day, failing to recognise a cardiac arrest earlier on remains a barrier to saving more lives.

The following are excerpts from the ERC Guidelines 2021 which may help save lives. Link to the original document will be provided at the bottom of the article for full document reference.

How to recognise cardiac arrest

– Start CPR in any unresponsive person with absent or abnormal
breathing.


- Slow, laboured breathing (agonal breathing) should be considered a sign of cardiac arrest.


 – A short period of seizure-like movements can occur at the start of
cardiac arrest. Assess the person after the seizure has stopped: if
unresponsive and with absent or abnormal breathing, start CPR.

High quality chest compressions

– Start chest compressions as soon as possible.

- Deliver compressions on the lower half of the sternum (‘in the centre of the chest’).

- Compress to a depth of at least 5 cm but not more than 6 cm.

- Compress the chest at a rate of 100-120/min with as few interruptions as possible.

- Allow the chest to recoil completely after each compression; do not lean on the chest.

- Perform chest compressions on a firm surface whenever feasible.

– Continue CPR until an AED (or other defibrillator) arrives on site and is switched on and attached to the victim.

- Do not delay defibrillation to provide additional CPR once the defibrillator is ready.

Rescue breaths

– Alternate between providing 30 compressions and 2 rescue breaths.

- If you are unable to provide ventilations, give continuous chest compressions.

When and How to use an aed

– As soon as the AED arrives, or if one is already available at the site of the cardiac arrest, switch it on.

- Attach the electrode pads to the victim’s bare chest according to the position shown on the AED or on the pads.

- If more than one rescuer is present, continue CPR whilst the pads are being attached.

– Follow the spoken (and/or visual) prompts from the AED.

- Ensure that nobody is touching the victim whilst the AED is analysing the heart rhythm.

- If a shock is indicated, ensure that nobody is touching the victim.

– Push the shock button as prompted. Immediately restart CPR with 30 compressions.

- If no shock is indicated, immediately restart CPR with 30 compressions.

- In either case, continue with CPR as prompted by the AED. There will be a period of CPR (commonly 2 min) before the AED prompts for a further pause in CPR for rhythm analysis.

Foreign Body Airway Obstruction

– Suspect choking if someone is suddenly unable to speak or talk, particularly if eating.

- Encourage the victim to cough.

- If the cough becomes ineffective, give up to 5 back blows:

1. Lean the victim forwards.

2. Apply blows between the shoulder blades using the heel of one hand

- If back blows are ineffective, give up to 5 abdominal thrusts:

1. Stand behind the victim and put both your arms around the upper part of the victim’s abdomen.

2. Lean the victim forwards.

3. Clench your fist and place it between the umbilicus (navel) and the ribcage.

4. Grasp your fist with the other hand and pull sharply inwards and upwards.

– If choking has not been relieved after 5 abdominal thrusts, continue alternating 5 back blows with 5 abdominal thrusts until it is relieved, or the victim becomes unconscious.

- If the victim becomes unconscious, start CPR.

References

European Resuscitation Council Guidelines 2021: Basic Life Support (2021). Retrieved from https://cprguidelines.eu/assets/guidelines/European-Resuscitation-Council-Guidelines-2021-Ba.pdf on 6th September 2022

European Resuscitation Council Guidelines 2021: Executive summary (2021). Retrieved from https://cprguidelines.eu/assets/guidelines/European-Resuscitation-Council-Guidelines-2021-Ex.pdf on 6th September 2022


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Emergency Nursing Practice – Introduction to First Aid

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Emergency nursing practice requires the nurse to provide immediate emergency care and interventions to preserve the life of individuals experiencing acute illness or injury.

Emergency nursing practice aims to:

  1. Preserve Life through identification and management of life-threatening conditions
  2. Prevent Complications to avoid deterioration of patient’s condition (eg. choking, cardiac arrest, & bleeding)
  3. Promote Recovery by providing reassurance and comfort to the patient, seeing that the patient gets medical attention, as well as managing pain through interventions such as immobilising a fractured limb

What is the 1st thing you should do in Emergency Nursing Practice?

emergency nursing practice
Retrieved from https://www.bereadylexington.com/exercise-message-lexington-emergency-opertion-center-activated/ on 3rd September 2022
  1. Assess the situation from a distance and look out for any possible danger
  2. Determine what the emergency is and the extent of the emergency eg. number of apparent casualties.

Then use the S.A.F.E. approach…

emergency nursing practice
Retrieved from https://www.alsg.org/fileadmin/temp/Specific/Ch04_BLS.pdf on 3rd September 2022

Safety Tips for Emergency Nursing Practice

  • BLEEDING – protect yourself from blood and other body fluids by using non-sterile gloves, or use non-touch technique eg. by holding the patient’s own hand onto the bleeding wound
  • HAZARDS – careful about things such as being in a busy road, being close to hazardous substances, or harmful situations; avoid becoming a casualty yourself!
  • CROWDS – be careful not to get pinned in!
  • AGGRESSIVE BEHAVIOUR – aggressiveness could be the result of non-organic problems such as due to current emergency
Hazardous Substances – Retrieved from https://www.principalpeople.co.uk/blog/2015/08/working-with-substances-that-are-hazardous-to-health on 3rd September 2022

Emergency Situations Requiring Special Attention…

  1. CAR CRASH EMERGENCY – extra precautions include switching off the vehicle, pulling up the handbrake, removing the keys from ignition, and looking out for other vehicles
  2. FIRE EMERGENCY – if fire has spreaded drastically, do not attempt to go in…call for assistance if it looks too dangerous
  3. ELECTRIC SHOCK EMERGENCY – prior to attempting any first aid procedures, switch off the main and use a non-conductor to remove the electrical object in contact with the patient
  4. DROWNING EMERGENCY – you are NOT expected to jump into the water to save a patient if not confident enough

Calling for an Ambulance

You should call an ambulance:

  1. if you are dealing with a serious situation eg. car crash, fire emergency, and/or multiple casualties
  2. if you are dealing with a situation where a life or a limb may be lost eg. difficulty breathing, severe chest pain, choking, and/or unconsciousness
  3. if you are in doubt

If you are calling for an ambulance (Malta & Gozo):

  1. dial 112
  2. ask for an ambulance
  3. stay calm
  4. mention what happened, where it happened, and who you are
  5. answer any questions in detail
  6. DO NOT BE THE FIRST TO HANG UP!

The Vital Functions of the Human Body

The human body’s primary vital systems are the Respiratory (lungs), Circulatory (heart) and the Brain (oxygenated).

Retrieved from https://www.freepik.com/premium-vector/human-anatomy-internal-organ-set-with-brain-lungs-with-heart_13011199.htm on 4th September 2022
  • The respiratory system includes the Airway and Breathing
  • Circulation includes the Heart, Blood Vessels, and Blood
  • The Brain includes the Neurological aspect of it
emergency nursing practice
Retrieved from https://learn.canvas.net/courses/2171/pages/introduction-to-abcde-assessment on 4th September 2022

Anything affecting the ABCD of the patient can be life-threatening, requiring prompt action so that life is preserved!

Airway Problems

  • obstruction by patient’s own tongue during unconsciousness period
  • foreign body obstruction in a choking patient
  • swelling of the airway due to an allergic reaction (anaphylactic shock) or inhalation of chemicals
  • facial trauma following a maxillofacial injury

NOTE: The tongue in an unresponsive casualty can easily obstruct the airway. Hypoglycaemia and overdose are the two main causes of airway obstruction by tongue.

Breathing Problems

  • compromised airway as mentioned above
  • respiratory issues such as asthma
  • cardiac issues such as congestive heart failure causing fluid build-up in the lungs
  • chest injuries eg. in which ribs are broken, which then puncture the lungs
  • environmental issues eg. strangulation, suffocation and/or drowning

Circulation Problems

  • compromised airway and breathing problems as mentioned above
  • internal bleeding
  • external bleeding
  • additional causes of shock
  • cardiac illness eg. cardiac arrest, congestive heart failure, or myocardial infarction

Neurological Problems a.k.a. Neurological Disabilities

  • compromised airway, breathing, and circulatory problems as mentioned above, leading to lack of oxygen in the brain and body
  • neurological disorders eg. cerebrovascular accident or central sleep apnea
  • brain injury following head trauma
  • hypoglycaemia (low blood glucose level)
  • poisoning
  • serious infections
  • serious illnesses that lead to organ failure
emergency nursing practice
Retrieved from https://medcast.com.au/blog/why-you-should-use-an-abcde-approach-to-patient-assessment on 4th September 2022

Assessing the Patient

Initial Patient Assessment

  • Immediately identify and address life-threatening (ABCD) problems with the aim of preserving life
  • Is the patient responsive? SHAKE & SHOUT & use AVPU scale
  • Is the patient unresponsive? Check if his airway is obstructed, perform head-tilt chin-lift maneuver
  • Is he breathing? Look, Listen & Feel!
  • Are there evident serious bleeding signs eg. blood on the floor, blood on chest, abdomen, pelvis, thighs? REMEMBER: 50% Blood Loss = Unconscious Patient!
  • Is the patient exhibiting signs of shock? (pale & cold, clammy skin; fast weak radial pulse, fast shallow breathing, weak & lethargic)
SHAKE & SHOUT – Retrieved from https://slideplayer.com/slide/4331579/ on 4th September 2022
emergency nursing practice
AVPU Scale – Retrieved from https://www.ems1.com/ems-training/articles/use-avpu-scale-to-determine-a-patients-level-of-consciousness-FVpjgzNGwSJAGoeQ/ on 4th September 2022

UNRESPONSIVE & NOT BREATHING = START CPR IMMEDIATELY

SERIOUS BLEEDING = PUT PRESSURE ON THE WOUND TO STOP BLEEDING

Emergency Nursing Practice Techniques that help Clear Airway Obstruction

Manual techniques:

No side effects, no equipment required – use the head tilt chin lift technique or the jaw-thrust maneuver.

Simple Adjuncts:

Minimal side effects – use of a hollow tube that holds tongue in place.

ENDOTRACHEAL INTUBATION (eti):

A medical procedure in which a tube is placed in the trachea via the mouth or nose. If performed wrongly, this may kill the casualty.

Airways:

Ventilation of the larynx with a laryngeal tube or mask.

SOMETHING STUCK IN WINDPIPE = HEIMLICH MANEUVER

sECONDARY PATIENT ASSESSMENT

A secondary patient assessment is performed with the aim to identify conditions that can worsen the primary issue – the 4 B’s…

  1. Breathing
  2. Bleeding
  3. Burns
  4. Bones

A secondary patient assessment can be performed in the following order:

Step 1: Complaint – signs & symptoms

Step 2: Perform a head-to-toe assessment using the D.O.T.S. method:

  • Deformities
  • Open Wounds
  • Tenderness
  • Swelling

Step 3: Vital Signs – include an accurate respiratory rate and pulse rate

Step 4: History – use the acronym S.A.M.P.L.E.

emergency nursing practice
Retrieved from https://www.slideserve.com/carter/baseline-vital-signs-and-sample-history on 4th September 2022

Signs of Breathing Problems

  • Dyspnoea – check for visual breathing distress and use of accessory muscles
  • Noisy Breathing
  • Abnormal Breathing Pattern – notice the patient’s breathing rate and rhythm
  • Cyanosis – check for bluish discolouration of the patient’s skin due to lack of oxygen circulation in the body
  • Disorientation and Confusion
  • Unusual Aggressiveness
  • Respiratory Arrest a.k.a. respiratory failure – patient may stop breathing

Signs of Circulatory Problems

  • Pale, Cold, Clammy Skin
  • Internal / External Bleeding
  • Rapid Shallow Breathing
  • Fast OR Very Slow Pulse
  • Inability to Palpate Radial Pulse (located at the wrist)
  • Cardiac Arrest (heart stops pumping blood)

Signs of Neurological Problems

  • Weakness, Paralysis or Loss of Sensation within the Limbs
  • Assymetry within the patient’s Face
  • Unequal and/or Unreactive Pupils
  • Seizures
  • Disorientation or Confusion
  • Unusual Aggressiveness
  • Altered Level of Response (patient may also be drowsy)

Summary…

  1. Check ABCs
  2. Gather Signs & Symptoms
  3. Head to Toe Assessment (D.O.T.S.)
  4. Measure Vital Signs (RR & PR)
  5. History (S.A.M.P.L.E.)
Retrieved from https://www.alucansa.com/showroom/?ss=5_6_4_26_36&pp=basic+first+aid+training&ii=2293819 on 5th September 2022

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