American Airlines (AA) Medical KSV Practice Test

The main idea is recognizing a situation with an abrupt loss of circulation. Cardiac arrest happens when the heart stops beating effectively, so blood isn’t reaching the brain and other vital organs. The person becomes unresponsive and not breathing normally, and there is no pulse. Because oxygen delivery stops immediately, death can occur within minutes unless high-quality CPR is started right away and an AED is used as soon as possible. That immediacy—sudden loss of consciousness with no pulse and no normal breathing—makes this the life-threatening emergency. Stroke and heart attack are serious and require urgent care, but they don’t involve an immediate collapse of circulation in the same instant way, and choking, while dangerous, is primarily an airway obstruction issue that can often be relieved with airway-clearing techniques.