Question 5 • Adv. Physical Education S2 Original
Chest compressions should be delivered at a rate of 100–120 per minute, so performing about 100 each minute is correct. The usual adult compression depth is about 2–2.4 inches, not 2.5–3 inches, and the usual compression-to-breath ratio is 30:2, not 50:2. Keep your arms straight rather than relaxing your elbows.
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