How often should CPR be reassessed?

In the context of performing CPR, reassessing the situation is crucial to ensure the best possible care is being provided. The correct interval for reassessment during CPR is every 2 minutes. This timing aligns with the recommended guidelines, which suggest that after every 5 cycles of chest compressions and rescue breaths (assuming a compressions-to-ventilations ratio of 30:2 for adults), the responder should evaluate the effectiveness of the CPR being performed and reassess the need for continuing resuscitation efforts.

This 2-minute interval allows rescuers to monitor the patient for any changes in their condition, such as the return of spontaneous circulation (ROSC) or the need for continued chest compressions. It also provides an opportunity for rescuers to rotate out if fatigue is affecting the quality of compressions, which is essential since high-quality CPR is critical for improving outcomes.

While it might be tempting to reassess more frequently, doing so too often can interrupt the flow of compressions and decrease the overall efficacy of CPR. Conversely, waiting longer than 2 minutes may lead to a delay in providing necessary interventions. Therefore, reassessing every 2 minutes is not only a guideline but also a practical approach to ensure continuous and effective resuscitation