CPR Techniques 2 — Questions and Answers
Question 1: What is the recommended compression rate for adult CPR?
- 60 to 80 per minute
- 100 to 120 per minute (Correct answer)
- 140 to 160 per minute
- 40 to 60 per minute
Correct answer: 100 to 120 per minute
High-quality CPR uses a rate of 100 to 120 compressions per minute.
Question 2: How deep should chest compressions be on an average adult?
- At least 2 inches (5 cm) (Correct answer)
- About 0.5 inch (1 cm)
- At least 4 inches (10 cm)
- Exactly 1 inch (2.5 cm)
Correct answer: At least 2 inches (5 cm)
Adult compressions should be at least 2 inches but no more than 2.4 inches deep.
Question 3: What is the correct compression-to-ventilation ratio for one-rescuer adult CPR?
- 15:2
- 5:1
- 30:2 (Correct answer)
- 10:1
Correct answer: 30:2
A single rescuer gives 30 compressions followed by 2 breaths for an adult.
Question 4: Why is allowing full chest recoil important between compressions?
- It lets the heart refill with blood (Correct answer)
- It conserves rescuer energy
- It prevents rib fractures
- It increases compression depth automatically
Correct answer: It lets the heart refill with blood
Full recoil allows the heart to refill so the next compression can pump effectively.
Question 5: Where should your hands be placed for adult chest compressions?
- On the upper sternum near the collarbone
- On the left side over the heart
- On the center of the chest, lower half of the sternum (Correct answer)
- On the abdomen below the ribs
Correct answer: On the center of the chest, lower half of the sternum
Hands go on the center of the chest over the lower half of the breastbone.
Question 6: How long should interruptions in chest compressions ideally last?
- Less than 10 seconds (Correct answer)
- About 30 seconds
- Up to 1 minute
- As long as needed
Correct answer: Less than 10 seconds
Pauses in compressions should be limited to less than 10 seconds to maintain blood flow.
Question 7: What technique helps maintain effective compressions during prolonged CPR?
- Pressing harder over time
- Switching rescuers every 2 minutes (Correct answer)
- Slowing the rate to save energy
- Stopping to rest every minute
Correct answer: Switching rescuers every 2 minutes
Rescuers should switch roughly every 2 minutes to prevent fatigue that reduces quality.
CPR Techniques 2
What is the recommended compression rate for adult CPR?