Final answer:
In a suspected drowning or hypoxic event as the cause of cardiac arrest, the person should be removed from the water as quickly as possible. Chest compressions should be started immediately to provide blood flow to vital organs. Rescue breaths can be given after chest compressions if needed.
Step-by-step explanation:
The correct course of action in a suspected drowning or hypoxic event as the cause of cardiac arrest is to remove the person from the water as quickly as possible. This is because CPR is ineffective in the water. After bringing the person to stable ground, begin chest compressions immediately. CPR is crucial in providing blood flow to vital organs, especially the brain, during a cardiac arrest. Rescue breaths can be administered after chest compressions if needed.