Lifeguarding by the Numbers

What is the compression-to-ventilation ratio for one-rescuer CPR on an adult?

• 30:2

• 15:2

• 30:1

• 2:30

In which situations is a 15:2 compression-to-ventilation rate most effective?

• Two Rescuer Infant CPR

• One Rescuer Child CPR

• Two Rescuer Adult CPR

• One Rescuer Infant CPR

• Two Rescuer Child CPR

When delivering ventilations, each ventilation should last ___ second.

When performing CPR on an adult victim, how deep should your chest compressions be?

• 1.5 inches

• 2 to 2.4 inches

• 2 inches

• 1.5 to 2 inches

When performing CPR on a child, about how deep should your chest compressions be?

• 1 inch

• 1.5 inches

• 2 inches

• 2.5 inches

When performing CPR on an infant, how deep should your chest compressions be?

• 1.5 inches
• 2 inches

• 1 inch

• 1.5 to 2 inches

What is an appropriate compressions-per-minute for CPR?

What is the maximum amount of time it should take a rescuer to switch between compressions and ventilations during CPR?

• 5 seconds

• 6 seconds

• 7 seconds

• 8 seconds

On a victim who is not breathing but has a pulse, you should re-check pulse and breathing every ___ minutes

When performing rescue breaths (not CPR) on an adult victim, how often should you deliver one ventilation?

• 3-4 seconds

• 4-5 seconds

• 5-6 seconds

• 6-7 seconds