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8. Repeat cycles of 30 chest compressions and 2 rescue breaths until the person recovers or help arrives.
Do 100 to 120 compressions per minute. Pauses in chest compressions for rescue breaths should be less than 10 seconds.
If two or more rescuers are available then switch compressors every 2 minutes or after about 5 cycles of 30 compressions and 2 breaths to prevent rescuer fatigue.
If an AED is available, use it as soon as possible.
If opioid poisoning (overdose of medicines, fentanyl, or heroin) is suspected, and the person is not breathing, give Naloxone if available, without interfering with CPR.
Review Date 2/10/2026
Updated by: Jesse Borke, MD, CPE, FAAEM, FACEP, Attending Physician at Kaiser Permanente, Orange County, CA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
