Table 1.

Treatable Causes of Cardiac Arrest: The H's and T's

H'sT's
HypoxiaToxins
HypovolemiaTamponade (cardiac)
Hydrogen ion (acidosis)Tension pneumothorax
Hypo-/hyperkalemiaThrombosis, pulmonary
HypothermiaThrombosis, coronary
  • For further explanation of the H's and T's, see Part 12: “Special Resuscitation Situations.”