Difficulty: Medium
Average Score: 91%
Simulated
The rapid response team has been called to manage an unwitnessed cardiac arrest. The estimated maximum time a person can be without cardiopulmonary function and still not experience permanent brain damage is:
Correct answer
B
Rationale
Brain damage begins after 4 to 6 minutes without oxygenation, making this the critical window for initiating CPR to prevent permanent damage.