If the victim is not breathing, but has a pulse, the level of care you provide is based on:

When a victim is not breathing but still has a pulse, the primary concern is to restore adequate breathing and oxygenation to prevent further deterioration of the victim's condition. The correct approach in this situation revolves around the proximity to shore or a boat because it directly influences how quickly and effectively you can deliver the necessary care, such as resuscitation attempts or transferring the victim to medical assistance.

If you are far from shore or a boat, the options available for rescue and resuscitation may be limited, and it becomes crucial to initiate rescue breathing as soon as possible while optimizing your approach based on the environment. Conversely, if you are closer to a rescue option, you have the opportunity to quickly get the victim to a point where advanced care can be provided, making the distance a vital factor in determining how you proceed with care.

The other considerations, like training experience, age of the victim, and water temperature, can influence aspects of the rescue but do not inherently dictate the immediate level of care required in the scenario where the primary issue is non-breathing despite a pulse. The distance from shore or a boat most directly impacts your ability to deliver critical interventions promptly and effectively.