Final answer:
For 1-rescuer infant CPR, the ratio of compressions to breaths is 30:2. When using an AED on someone who has been submerged, pull the person out of the water and use the AED. In the given scenario, immediate high-quality CPR should be initiated for the collapsed 3-year-old child.
Step-by-step explanation:
For 1-rescuer infant CPR, the recommended ratio for compressions to breaths is 30 compressions to 2 breaths. This means you should give 30 chest compressions followed by 2 full breaths. This ratio is used to effectively maintain blood flow and oxygenation to the infant's vital organs during CPR.
For using an AED on someone who has been submerged, the correct action is to pull the person out of the water, wipe the chest dry if it is wet, and then use the AED if available. It is important to ensure the person is out of the water before using the AED to avoid the risk of electric shock.
Based on the scenario provided, a 3-year-old child has collapsed and is in cardiac arrest. The rescuer should immediately begin performing high-quality CPR, and when additional rescuers arrive, they can provide assistance in the resuscitation attempt.
Learn more about CPR and AED procedures