Management of adult cardiac arrest in special circumstances
- All cardiac arrests are managed as mention on the cardiac arrest page. However, there are some situations where extra management steps are needed. These are:
Hyperkalaemia
- Calcium chloride 10 ml of 10% IV
- Sodium bicarbonate 50 ml of 8.4% IV
- Insulin-dextrose IV infusion (10 units of actrapid in 50 ml of 50% dextrose)
Hypokalaemia
- Potassium 20 mmol IV over 10 minutes followed by 10 mmol IV over 5-10 minutes
- Also give magnesium 2 g IV if concurrent hypomagnesaemia suspected
Hypocalcaemia
- Calcium chloride 10 ml of 10% IV
- Also give magnesium 2 g IV if concurrent hypomagnesaemia suspected
Opiate toxicity
- Naloxone 0.4 mg IV; repeated doses up to 4 mg may be required
Tricyclic antidepressant toxicity
- Sodium bicarbonate 50 ml of 8.4% IV
Local anaesthetic toxicity
- 1.5 ml/kg of 20% lipid emulsion IV
Hypothermia
- Palpate the carotid pulse and look for signs of life for up to one minute
- Re-warm patient to 32-34 oC
- Withhold drugs until temperature >30 degrees celcius
- If VF/VT persists beyond 3 shocks, withhold further shocks until temperature >30 degrees celcius
Hyperthermia
- Use active cooling methods
- Dantrolene can be used in neuroleptic malignant syndrome or malignant hyperthermia
Trauma
- Intubate early and manange hypovolaemia with fluids and haemorrhage control
- Consider ED thoracotomy in specific circumstances
Asthma
- Manage as per acute asthma: High flow oxygen, salbutamol 5mg nebulised back-to-back, ipatropium 0.5mg nebulised, magnesium 2g iv if not responding to the above
- Intubate early
- Consider tension pneumothorax early and manage accordingly
Pregnancy
- Manage by physically pushing the foetus to the left (left lateral no longer used) to relieve inferior vena cava (IVC compression)
- If the foetus is >20 weeks gestation, emergency delivery via Caesarean section should occur within five minutes of cardiac arrest
- If the foetus is <20 weeks it should not pose to much of a problem for resuscitation or place too many physiological demands on the mother and CPR can continue without Caesarian section
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