During cardiopulmonary resuscitation, what is the maximum number of seconds that chest compressions should be interrupted to give the two mouth-to-mouth rescue breaths?

Question

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The correct answer is 10 seconds. During resuscitation, if you know how to give mouth-to-mouth, you alternate 30 compressions and 2 rescue breaths. Each breath lasts about 1 second, just enough to make the chest rise, and the pause in compressions to give both must not exceed 10 seconds (European Resuscitation Council, 2025; DGT first aid manual). If the chest does not rise, do not keep trying: after two attempts, go straight back to compressions. If you do not know how to give or cannot give mouth-to-mouth, do compressions only, without stopping.

During cardiopulmonary resuscitation, what is the maximum number of seconds that chest compressions should be interrupted to give the two mouth-to-mouth rescue breaths?

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