What does the acronym CAB stand for in emergency response?

The acronym CAB stands for Circulation, Airway, Breathing, which is a sequence of steps to follow during emergency response, particularly in cardiopulmonary resuscitation (CPR) scenarios. This order is crucial because effective circulation is a priority when a person is unresponsive or lacks a pulse, ensuring that vital organs receive blood flow.

Once circulation is addressed, attention shifts to the airway to confirm it is clear and unobstructed. A clear airway is necessary for effective breathing to take place. Finally, breathing is assessed or administered, since oxygen delivery is essential for cell survival.

This sequence—first ensuring circulation, then maintaining an open airway, and finally securing adequate breathing—can significantly enhance the chances of survival in emergencies. The other options focus on different concepts that do not align with the critical steps needed in immediate life-threatening situations.