What term is used for the sudden loss of heart function, breathing, and consciousness?

The term that describes the sudden loss of heart function, breathing, and consciousness is cardiac arrest. During cardiac arrest, the heart stops pumping blood effectively, which leads to a lack of blood flow to vital organs, including the brain. As a result, the individual will lose consciousness and will not be able to breathe normally. This condition is a medical emergency that requires immediate intervention, typically cardiopulmonary resuscitation (CPR) and defibrillation, to restore heart function and prevent irreversible damage.

This distinguishing characteristic of cardiac arrest sets it apart from related conditions. For example, a heart attack occurs when blood flow to a part of the heart is blocked, but the heart may still be beating. A stroke, on the other hand, disrupts blood flow to the brain but does not necessarily involve the heart's function directly. Respiratory failure is primarily an issue with the lungs and does not imply a complete stop of heart function. Recognizing these differences is crucial for appropriate emergency treatment and understanding the severity of each condition.