What is a key difference in CPR steps if drowning is suspected?

When drowning is suspected, the key distinction in CPR steps is the provision of initial ventilations before compressions. This approach is crucial because, in drowning cases, the primary problem is often related to breathing. Victims are likely to have water in their lungs, and restoring adequate oxygenation is a priority. Therefore, giving two rescue breaths before initiating chest compressions can help reintroduce oxygen to the bloodstream and vital organs, which is especially important when addressing hypoxia.

This differs from standard CPR protocols, where high-quality compressions typically begin immediately. In drowning situations, the physiological state of the victim necessitates a focus on ventilations to alleviate the effects of water intake and restore normal breathing. In terms of the other choices, starting with compressions, calling for help first, or using one hand for compressions might not adequately address the underlying issues present in drowning cases.