reversible causes of cardiac arrest

Last reviewed 01/2018

The reversible causes of cardiac arrest include four "H's":

• hypoxia
• hypovolaemia
• hyperkalaemia, hypokalaemia, other electrolyte disturbances
• hypothermia

and four "Ts":

• tension pneumothorax
• cardiac tamponade
• drug toxicity and therapeutics
• thromboembolism and other outflow obstructions