Emergencies Flashcards
Anaphylaxis Rx in <6 month old
Adrenaline 150mcg (0.15ml 1 in 1,000)
Hydrocortisone 25mg
Chlorphenamine 250mcg/kg
Anaphylaxis Rx in 6 months to 6 years old
Adrenaline 150mcg (0.15ml 1 in 1,000)
Hydrocortisone 50mg
Chlorphenamine 2.5mg
Anaphylaxis Rx in 6 to 12 years old
Adrenaline 300mcg (0.3ml 1 in 1,000)
Hydrocortisone 100mg
Chlorphenamine 5mg
Anaphylaxis Rx in >12 years old
Adrenaline 500mcg (0.5ml 1 in 1,000)
Hydrocortisone 200mg
Chlorphenamine 10mg
Management of Shock
- If ECG unrecordable, treat as cardiac arrest
- Raise foot of bed
- IV access + bolus (unless cardiogenic)
- Assessment
- Ix - lactate
- Monitoring catheter, arterial and CVP line
Mx Cardiogenic Shock
Rx Arrythymias/MI
Consider dobutamine
Mx Septic Shock
Abx for unknown cause, joint/soft tissue, C. diff, and abdominal source
As for shock \+ IV Abx Unknown cause: mero + gent Joint + soft tissue: fluclox C diff: vanc and met Abdo: cef and met
Fluids, vasopressors
Mx Anaphylaxis
- Secure airway and give 100% O2
- Adrenaline 0.5mg 1:1000 IM (repeat every 5 min)
- Secure IV access and give fluid bolus
- Chlorphenamine 10mg IV + Hydrocortisone 200mg IV
- Salbutamol Nebs 5mg if wheeze
Mx SVT
- Patient compromised: sedate + DC 3x (100, 200, 360)
- If fails, amiodarone 300mg over 20-60 min
- Not compromised: Vagal manoeuvres
- Adenosine IV 6, 12, 12mg
- If fails, consider: VADA
Verapamil
Amiodarone
Digoxin
Atenolol
Mx Broad Complex Tachycardia
- O2 and IV access
- If adverse signs: sedate + DC, then amiodarone
Adverse signs = shock, syncope, MI, HF - If no adverse signs: correct electrolytes and assess rhythm
- Regular rhythm i.e. VT: amiodarone or lignocaine
- Irregular
(AF with BBB treat as SVT,
Pre-excited AF - fleic/amio, or TDP - MgSO4 3g IV)
Mx for STEMI
- Aspirin and Clopidogrel 300mg PO (then 75mg/d)
- Morphine and Metoclopramide 10mg IV
- Atenolol 5mg IV
- GTN 2 puffs or 1 tablet SL
- Primary PCI or thrombolysis
(Long term: BB, cardiac rehabilitation, statin, continue clopidogrel for 1 month, lifelong aspirin)
Mx for NSTEMI + Unstable Angina
- Aspirin and Clopidogrel 300mg PO
- Fondaparinux 2.5mg SC
- Morphine and metoclopramide 10mg IV
- GTN 2 puffs
- Atenolol 50mg/24hr PO
(Long term: BB, Statin, clopidogrel 1 year, lifelong aspirin)
Mx Severe Pulmonary Oedema
- Sit patient up + high flow oxygen
- Diamorphine 5mg + Metoclopramide 10mg IV
- Frusemide 40mg IV
- GTN 2 puffs
- Consider CPAP, increased frusemide, nitrate infusion and haemo-filtration
Mx Cardiogenic Shock
- IV access and monitor ECG
- Diamorphine 5mg + metoclopramide 10mg IV
- Correct arrhythmias, electrolyte disturbance and acid base abnormalities
- Assessment and monitoring
- Consider need for dobutamine
Tamponade: causes
- Trauma
- Lung cancer
- Pericarditis
- MI
- Bacteria e.g. TB
Signs of Tamponade
Beck’s triad: low BP, raised JVP and muffled heart sounds
Kussmaul’s sign: raised JVP on inspiration
Pulsus paradoxus: (pulse fades on inspiration)
Ix for Tamponade
Echo: diagnostic
CXR: globular heart
ECG: ST changes, low voltage QRS
Mx for tamponade
ABCs
Pericardiocentesis (preferably under echo guidance)
Mx for Meningitis
- IV fluid and high flow oxygen
- Abx:
Community: benpen 1.2g IM
<50: cef 2g IV BD
>50: cef + ampicillin 2g IV/4 hour
Viral: aciclovir - If not CI : LP
- Dexamethasone 0.15mg/kg IV QDS
- Monitor urine output, consider inotropes
Mx for Encephalitis
- Usually HSV 1
- Aciclovir STAT 10mg/kg/8h IVI over 1 hour for 14/7
- Supportive measures in HDU/ITU
- Phenytoin for seizures
Mx for Cerebral Abscess
- Neurosurgical referral
- Abx e.g. ceftriaxone
- Treat raised ICP - dexamethasone
- (CT/MRI - ring-enhancing lesion)
Mx for Status Epilepticus
- Secure airway + high flow oxygen + suction
- IV access + U+E, LFT, FBC, Glucose, Ca, AED levels, Tox screen
- Thiamine if alcohol, 100ml 20% if glucose
- Lorezapam 2-4mg IV, 2nd response within 2 min
- Phenytoin 18mg/kg IV or diazepam 100mg in 500ml 5% dex IVI
Mx for Head Injury
- GCS, pupils
- Look for C spine tenderness, lacerations and signs of basal skull fracture on 2o survey
- Neurosurgical opinion if signs of raised ICP, CT evidence of intracranial bleed or significant skull fracture
- Neuro-obs half hourly until GCS 15
- Stay with someone for 48 hours and give advice card
CT head guidelines: BANGS LOC
Break: open, depressed or base of skull Amnesia >30 min retrograde Neuro deficit or seizure GCS <13 at any time or <15 2 hours after injury Sickness: vomited > once
LOC or amnesia + any of:
- Dangerous mechanism
- Age >65
- Coagulopathy (inc. warfarin)
@1 hour: BNGS
@8 hour: ALOC + warfarin
Mx of raised ICP
- ABC
- Treat seizures and correct hypotension
- Elevate bed to 40 degrees
- Neuroprotective ventilation (PaO2>13, PCO2 4.5 - good sedation with NM blockade)
- Mannitol or hypertonic saline
Cushing’s reflex
Raised BP, low HR and irregular breathing
Tonsilar herniation (coning) syndrome
Displacement of cerebellar tonsils through foramen magnum
CNVI palsy, upping plantars, irregular breathing, apnoea
Transtentorial/uncal herniation syndrome
- Compression of ipsilateral inferomedial temporal lobe against free margin of tentorium cerebelli
- Ipsilateral CNIII palsy (mydriasis then down and out), contralateral hemiparesis
Subfalcine herniation syndrome
- Displacement of cingulate gyrus (medial frontal lobe) under falx cerebri
- Compression of ACA –> stroke
Mx of Acute Severe Asthma
- Sit up + high flow O2
- Salbutamol neb 5mg + ipratropium (0.5mg)
- Hydrocortisone 100mg IV or pred 50mg PO
- Life threatening: inform ITU, MgSO4 2g IVI over 20min, neb salbutamol every 15 min
- Continue pred 50mg for 5 days
Assessment of life threatening asthma
- PEFR <33%
- SpO2 <92 or PCO2 >4.6
- Cyanosis
- Hypotension
- Exhaustion
- Silent chest
- Arrythmia
Mx of acute exacerbation of COPD
- Sit up and controlled O2 therapy (aim for PaO2>8)
- Salbutamol 5mg and Ipratropium 0.5mg nebs
- Hydrocortisone 200mg IV + Prednisolone 40mg PO
- Abx if evidence of infection (Doxy 200mg STAT)
- Repeat neb and consider aminophylline IV and NIV if no response
Mx of PE
- Sit up and O2
- Morphine + metoclopramide if distressed
- Consider thrombolysis (alteplase 50mg bolus STAT) if massive PE
- Interim LMWH or fondaparinux
- Confirmed PE: TEDS, continue LMWH until INR>2, continue for:
3 months if remedial cause
6 months if no identifiable cause
Indefinitely if on-going cause
Mx of Pneumothorax
- Tension: resuscitate and large bore cannula into 2nd ICS mid-clavicular line
- 3 sided wet dressing if sucking wound (traumatic)
- All PTX: definitive Mx is insertion of chest drain
- Primary PTX (no underlying lung disease): discharge if no SOB and <2cm
- Secondary PTX: admit for 24 hours if aspiration successful, insert ICD if SOB and >50yrs and >2cm
Mx of Upper GI Bleed
- Resuscitate: head down, oxygen, 2xcannulae
- Bloods: FBC, U+E, LFTs, clouting, XM 6u, ABG, glucose
- Variceal: terlipressin IV, prophylactic cipro
- Maintenance and correct coagulopathy
- Urgent endoscopy: adrenaline/ laser coagulation/ endoclips/ variceal banding
Mx of Acute Renal Failure
- Pulmonary oedema: sit up and high flow oxygen
- Assess fluid status: CV, tissues, and end-organ
- Rx life threatening Cx: hyperkalaemia, pulmonary oedema, consider need for rapid dialysis
- Rx shock or dehydration
- Look for evidence of post-renal causes
Mx of DKA
- Fluids: 0.9% NS until SBP>90, then 1L over next 2, 2, 4, 4, and 6 hours
Add 10% dextrose 1L/8h when glucose <14mM - Start K replacement with 2nd bag (40mM/L)
- Insulin: 0.1u/kg/h Actrapid (6u if no weight, max 15u)
- Monitoring: hourly capillary glucose and ketones, VBG at 60 mins then every 2 hours, U+E 4 hourly
- Resolution: Ketones <0.3mM + venous pH >7.3. Transfer to sliding scale if not eating. Return to C insulin when eating and drinking.
Mx of HONKC
- Diagnosed via marked dehydration and glucose >35mM (symptomatic >60), no acidosis and osmolality >340
- Rehydrate with 0.9% NS over 48 hours (may need 9L)
- Wait 1 hour before starting insulin (may not be needed) and start slow to avoid rapid change in osmolality
- Look for precipitant e.g. MI, infection, bowel infarct
- LMWH as risk of DVT and stroke
Mx of Hypoglycaemia
- Symptoms: autonomic and neuroglycopaenic
- Alert and orientated: oral carbohydrate
- Drowsy but swallow intact : buccal carb e.g. glucogel
- unconscious or poor swallow: IV dextrose 100ml 20%
- No IV access or refractory: 1mg glucagon IM/SC - beware rebound hypoglycaemia after 20mins
Mx Thyroid Storm
- Fluid resuscitation + NGT
- Propranolol PO/IV
- Carbimazol then Lugol’s iodine 4h later to inhibit thyroid
- Hydrocortisone
- Rx cause e.g. infection, MI, trauma
Mx of Myxoedema Coma
- Bloods: TFTs, FBC, U+E, glucose, cortisol
- Correct any hypoglycaemia
- T3/T4 slow IV (may ppt. MI)
- Hydrocortisone 100mg IV
- Rx hypothermia and heart failure
Mx Addisonian Crisis
- Bloods: cortisol, ACTH, U+E
- Check CBG
- Hydrocortisone 100mg IV 6 hourly
- IV 0.9% NS
- Septic screen/ Rx cause e.g. infection, trauma
Mx Hypertensive crisis (Phaeochromocytoma)
- Alpha blocker e.g. phentolamine 5mg IV
- Then beta blocker e.g. labetalol 50mg IV - repeat until safe BP
- Phenoxybenzamine 10mg/d PO when BP controlled
- May now give BB to control tachycardia/ arrhythmias
- Elective surgery after 4-6 weeks to allow full alpha-blockade
Mx Burns
- Airway: examine for respiratory burns e.g. soot, burnt nasal hairs, hoarse voice, consider flexible laryngoscopy and early intubation with dexamethasone
- Breathing: high flow oxygen, look for signs of CO poisoning, ABG gives COHb level
- Circulation: fluid losses may be huge, 2x large bore, bloods, start 2L warmed hartmann’s immediately
- Parkland Formula to guide replacement in first 24 hours: 4x weight (kg) x %burn = mL Hartmann’s in 24 hours
- Analgesia, dress partial thickness burns (cadaveric skin, synthetic or cream and sterile film), manage full thickness with tangenital excision debridement and split-thickness skin grafts
Wallace rule of 9s
%BSA burn
Head and neck 9% Arms 9% each Torso 18% front and back Legs 18% each Perineum 1% Palm 1%
Mx Hypothermia
- Moderate hypothermia shows J waves on ECG between QRS and T
- Cardiac monitor, warm IVI 0.9% NS and urinary catheter. Consider Abx for pneumonia prevention
- Slowly rewarm (risk of shock) at 0.5 degrees an hour:
Passive external e.g. blankets
Active external e.g. warm water or air
Active internal: mediastinal lavage only in severe (<28) - Complications: arrythmias (VT to VF), pneumonia, coagulopathy, acute renal failure
- Shivering stops below 32.2
Adult ALS
- Look, listen feel –> call for help 2222
- CPR 30: 2, secure airway, give oxygen, attach defib
- Shockable (VF/pulseless VT): 1 shock, CPR 2 mins, adrenaline 1mg + amiodarone 300mg after 3rd shock, repeat adrenaline every other cycle
- Non-shockable (PEA/Asystole): resume CPR for 2 mins, adrenaline 1mg IV, repeat adrenaline every other cycle
- Reversible causes:
Hypoxia, hypovolaemia, hypo/hyperkalaemia, hypothermia
Thrombosis, tamponade, toxins, tension PTX
Mx Bradycardia
- Treat if: adverse features or risk of asystole
Adverse: shock, syncope, myocardial ischaemia, heart failure
Asystole: recent asystole, mobitz II, complete block or ventricular pause >3 secs - Atropine 500mcg IV repeat to maximum of 3mg
- Isoprenaline, adrenaline or transcutaneous pacing
- Consider: amionphylline, dopamine, glucagon (if BB or CCB overdose)
- Seek expert help and arrange transvenous pacing