H's and T's

Panchal AR, Bartos JA, Cabañas JG, Donnino MW, et al. Part 3: Adult Basic and Advanced Life Support: 2020 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. The Adult Cardiac Arrest Algorithm directs identification and treatment of reversible causes — the H's and T's — during resuscitation for pulseless electrical activity and asystole.