Question

For every minute that passes between collapse and defibrillation, how much does the chance of survival decrease from a witnessed VF sudden cardiac arrest if no bystander CPR is provided?

A) 7% to 10%
B) 3% to4%
C) 25% to 30%
D) 50% to 60%

Answer 1

The chance of survival for a witnessed VF sudden cardiac arrest decreases by 7% to 10% for every minute that passes between collapse and defibrillation if no bystander CPR is provided.

Step-by-step explanation:

The chance of survival for a witnessed VF (ventricular fibrillation) sudden cardiac arrest decreases by 7% to 10% for every minute that passes between collapse and defibrillation if no bystander CPR is provided.

For example, if defibrillation is delayed by 10 minutes, the chance of survival would decrease by approximately 70% to 100%.

This highlights the importance of immediate bystander CPR and early defibrillation in improving the chances of survival in such cases.