What is the compression-to-breath ratio for adult CPR when providing rescue breaths?

In adult CPR, the compression-to-breath ratio is standardized at 30 compressions to 2 rescue breaths. This guideline is based on the latest resuscitation science and reflects a balance that maximizes blood flow and air exchange during cardiac arrest. The 30:2 ratio applies to both single-rescuer and multiple-rescuer scenarios and emphasizes the importance of performing high-quality chest compressions, which should be constant and allow for minimal interruptions.

Maintaining this ratio helps ensure that adequate oxygen is delivered to the patient while also providing sufficient circulation. The compressions focus on maintaining blood flow to vital organs, while the breaths provide the necessary oxygen to the lungs. The rescue breaths are administered after every 30 compressions to help maintain arterial oxygen saturation until emergency medical services arrive. Using this specific ratio is critical for effective CPR and increases the likelihood of a successful outcome.