What is the recommended compression to ventilation ratio for adult CPR?

The recommended compression to ventilation ratio for adult CPR is 30 compressions to 2 breaths (30:2). This ratio applies to both trained rescuers and those providing CPR in emergency situations. The focus on this specific ratio ensures that there is enough blood circulation to support vital organs while also administering effective rescue breaths.

During adult CPR, high-quality chest compressions are critical, and maintaining a frequency of approximately 100 to 120 compressions per minute is recommended. The brief pause for breaths—two breaths after every 30 compressions—allows the rescuer to provide sufficient oxygen to the lungs of the victim. This method is supported by guidelines from organizations such as the American Heart Association, emphasizing that a well-structured approach to CPR can significantly impact the outcome for the patient in cardiac arrest.

The other ratios are not used in adult CPR and are more appropriate for different age groups or specific scenarios.