How Long Can the Heart Stop Before Its Critical? How Long Can Breathing Cease?

1. The duration before respiratory arrest occurs after heart arrest varies depending on individual physical conditions. For most patients, it takes about 10 to 20 seconds, while for a few patients, it may take about 30 to 45 seconds.

2. Heart arrest can lead to cerebral hypoxia and may also cause fainting. In severe cases, respiratory arrest usually occurs within about 10 to 20 seconds. If the patient has not completely lost consciousness during the onset, the pupils are not dilated, and cerebral hypoxia is not particularly severe, respiratory arrest may occur within about 30 to 45 seconds.

3. Heart arrest may be caused by pneumothorax and hypertension, or it may be due to coronary embolism, pulmonary embolism, and pericardial tamponade. It can also be caused by hypokalemia and hyperkalemia when potassium levels in the body are too high or too low. Early symptoms may include chest pain, shortness of breath, and palpitations. As the disease progresses, it may lead to cardiac arrest, loss of consciousness, and fainting, requiring emergency treatment such as artificial respiration and chest compressions, as well as dialing 120 for medical assistance.