What condition does cardiac arrest refer to?

Cardiac arrest refers to the condition in which the heart stops beating entirely. This cessation of the heart's function means that blood is no longer being pumped to the rest of the body, leading to an immediate loss of consciousness and, if not treated promptly, can result in death.

Understanding this definition is crucial because it highlights the urgency and severity of the situation. In cardiac arrest, immediate intervention is necessary, often through CPR or defibrillation, to restore heart function and prevent irreversible damage or death.

While conditions like increased heart rate, irregular heartbeat, and a heart that beats too slowly are all forms of cardiac issues, they do not describe the total failure of the heart's pumping ability that characterizes cardiac arrest. It is important to differentiate these various cardiac conditions, as they require different responses and treatments.