When performing mouth-to-mouth artificial respiration on an injured person, approximately how many seconds should we wait between each breath?

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The correct answer is 3-4 seconds. Rescue breathing (mouth-to-mouth) aims to oxygenate the victim's blood when they are not breathing on their own. The rhythm is crucial: it must be frequent enough to maintain oxygen levels but allow for air to exit (passive exhalation). A rhythm of one breath every 3 or 4 seconds creates a frequency of approximately 15 to 20 breaths per minute, which is adequate to ensure oxygenation in emergency situations according to specific first aid protocols. Waiting 10 or 12 seconds (incorrect options) would result in a respiratory rate that is too low (barely 5 or 6 per minute), which is insufficient to prevent brain damage due to hypoxia.

When performing mouth-to-mouth artificial respiration on an injured person, approximately how many seconds should we wait between each breath?

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