Pulseless electrical activity (PEA)

DDx

’CHEAPMD’ (mnemonic)

Cardiac tamponade
Hypoxia, Hypovolemia, Hypothermia, Hyperkalemia
Embolism (massive pulmonary embolism)
Acidosis
Pneumothorax (tension pneumothorax)
Myocardial infarction
Drug overdose, eg, tricyclic antidepressant, digoxin, beta blocker, calcium channel blocker

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