When performing CPR, what should be the ratio of chest compressions to breaths in adult patients?

The recommended ratio of chest compressions to breaths in adult patients during CPR is 30:2. This means that for every 30 compressions delivered, 2 rescue breaths should be provided. This ratio is based on guidelines from authoritative organizations such as the American Heart Association, which emphasizes the importance of high-quality chest compressions to maintain circulation during cardiac arrest.

The 30:2 ratio allows for efficient and effective chest compressions that help to circulate blood to vital organs while also incorporating ventilations. The higher number of compressions compared to breaths reflects the emphasis placed on maintaining adequate perfusion, as compressions are crucial for sustaining blood flow and oxygenation until advanced medical help arrives.

Other options like 10:1, 15:2, and 20:1 do not align with the established guidelines for adult CPR and could lead to inadequate oxygenation or circulation during the resuscitation effort. Therefore, adhering to the 30:2 ratio is essential for effective CPR in adult patients.