What occurs during cardiac arrest?

During cardiac arrest, the heart stops beating or pumps inadequately, leading to a significant interruption in blood flow to vital organs. This condition can result from various underlying issues such as a heart attack, arrhythmia, or trauma. When the heart ceases effective pumping, the immediate consequence is that the body is deprived of oxygen-rich blood, which can lead to loss of consciousness, organ failure, and if not promptly treated, can be fatal. Swift intervention, typically through cardiopulmonary resuscitation (CPR) and defibrillation, is crucial to restore normal heart function and blood circulation. Understanding this process highlights the critical nature of recognizing and responding to cardiac arrest situations, emphasizing the importance of training and awareness in emergency medical response.