Cardiopulmonary Resuscitation (CPR) Practice

The protocol for administering compressions and positive pressure ventilation (PPV) to non-intubated patients is structured around effective circulation and oxygenation, which is vital during a cardiac arrest scenario. Performing 30 chest compressions followed by 2 breaths is based on established guidelines that optimize blood flow and ensure sufficient oxygen delivery to the lungs.

This method, which follows the ratio of 30:2, is advocated due to its focus on maintaining high-quality chest compressions that will circulate blood to vital organs effectively while also allowing for timely ventilation. The compression component is critical because it helps create artificial circulation, while the subsequent breaths provide necessary oxygen to the patient.

In the context of the other options, they do not align with the current resuscitation guidelines. Compressions alone, without appropriate ventilation, would be insufficient for cases requiring oxygenation. Using differing ratios like 15:1 or 20:3 does not reflect the standard practices recommended for adult patients, which emphasize higher compression sequences followed by sufficient breaths to improve overall outcomes. Thus, the 30 compressions followed by 2 breaths is the scientifically supported method for managing non-intubated patients during CPR.