PALS Provider Course

RECOGNITION OF CARDIAC ARREST CAUSES (H’S AND T’S)

Understanding the reversible causes of cardiac arrest is critical for successful resuscitation. These causes are categorized as “H’s” and “T’s.”

The H’s:

  • Hypovolemia: Treat with fluid resuscitation.
  • Hypoxia: Ensure adequate oxygenation and ventilation.
  • Hydrogen Ion (Acidosis): Correct with ventilation and sodium bicarbonate if needed.
  • Hypoglycemia: Administer dextrose as indicated.
  • Hypo-/Hyperkalemia: Monitor and manage electrolytes appropriately.
  • Hypothermia: Rewarm gradually.

The T’s:

  • Tension Pneumothorax: Perform needle decompression.
  • Tamponade (Cardiac): Treat with pericardiocentesis.
  • Toxins: Administer antidotes or perform decontamination.
  • Thrombosis (Pulmonary/Coronary): Manage with thrombolysis or surgical intervention.

Identifying and addressing these causes promptly can improve survival rates in pediatric cardiac arrest.