Circulation

Question 1

What are the reversible causes of cardiac arrest? 4T’s

Answer 1

Thrombosis (coronary or pulmonary)
Tension pneumothorax
Tamponade (cardiac)
Toxins

Question 2

What are the reversible causes of cardiac arrest? 4H’s

Answer 2

Hypoxia (low levels of oxygen)
Hypovolemia (shock)
Hyperkalemia/hypokalemia/hypoglycemia/hypocalcemia
Hypothermia