Pulseless electrical activity

Pulseless electrical activity (PEA) is a cardiac arrest rhythm that is characterized by the presence of electrical activity on an electrocardiogram (ECG) but no pulse or blood pressure. This means that the heart is producing electrical signals but is not able to pump blood effectively. PEA can be caused by a variety of factors, such as hypovolemia (low blood volume), hypoxia (lack of oxygen), hypothermia, electrolyte imbalances, or the presence of a clot or other obstruction in the blood vessels. Treatment of PEA typically involves CPR as the first-line management while underlying causes are also investigated and treated.