What is the ratio of ventilation & compressions?

What is the ratio of ventilation & compressions?

• A. 2-30
• B. 30-2
• C. 5-1
• D. 1-1

Answer: (A)

Understanding CPR ratios: when you see the ratio phrased as ventilation to compressions, you read it as breaths first for every set of chest compressions. In adults, the standard cycle is 30 compressions followed by 2 breaths. So, for every 30 compressions, there are 2 ventilations, which is written as 2-30. That’s why this option is the best match. The other ratios either swap the order (compressions first) or don’t reflect the CPR cadence used.

Understanding CPR ratios: when you see the ratio phrased as ventilation to compressions, you read it as breaths first for every set of chest compressions. In adults, the standard cycle is 30 compressions followed by 2 breaths. So, for every 30 compressions, there are 2 ventilations, which is written as 2-30. That’s why this option is the best match. The other ratios either swap the order (compressions first) or don’t reflect the CPR cadence used.