How often should rhythm checks be performed during CPR?

How often should rhythm checks be performed during CPR?

• A. Every 4 minutes
• B. Every 2 minutes
• C. Every 3 minutes
• D. Every 1 minute

Answer: (B)

Rhythm checks during CPR are performed every two minutes. This cadence balances the need to reassess the heart rhythm with the imperative of minimizing interruptions to chest compressions. At each check, quickly analyze the rhythm; if a shockable rhythm is present, deliver a shock and then immediately resume CPR, repeating the cycle at the next two-minute interval. Checking more often would add unnecessary pauses, while checking less often could delay identifying a rhythm that requires defibrillation.

Rhythm checks during CPR are performed every two minutes. This cadence balances the need to reassess the heart rhythm with the imperative of minimizing interruptions to chest compressions. At each check, quickly analyze the rhythm; if a shockable rhythm is present, deliver a shock and then immediately resume CPR, repeating the cycle at the next two-minute interval. Checking more often would add unnecessary pauses, while checking less often could delay identifying a rhythm that requires defibrillation.