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When diving doubles you will need to use your wing/BCD to compensation. Typically you can't control your buoyancy only with a drysuit with steel doubles and stage bottles so you will need to use your wing to offset buoyancy.
Compress at least 100 times per minute. 3. Stop Only if: The person starts breathing normally. A trained responder or emergency help takes over. You are too exhausted to continue. There is an automated external defibrillator (AED) to use. 4. Use an AED as Soon as One Is Available. Turn on the AED. It will give you step-by-step instructions. Wipe chest dry.