CPR Basic CPR 2 — Questions and Answers
Question 1: What is the correct compression-to-ventilation ratio for one-rescuer adult CPR?
- 30:2 (Correct answer)
- 15:2
- 5:1
- 20:2
Correct answer: 30:2
Single-rescuer adult CPR uses 30 chest compressions followed by 2 rescue breaths.
Question 2: How deep should chest compressions be on an adult victim?
- At least 2 inches (5 cm) (Correct answer)
- About 1 inch (2.5 cm)
- At least 3 inches (7.5 cm)
- Half an inch
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 recommended rate of chest compressions per minute?
- 100 to 120 (Correct answer)
- 60 to 80
- 140 to 160
- 40 to 60
Correct answer: 100 to 120
Effective CPR uses a compression rate of 100 to 120 per minute.
Question 4: Where should you place your hands for adult chest compressions?
- Center of the chest on the lower half of the breastbone (Correct answer)
- Over the left nipple
- On the upper abdomen
- On the left side of the ribcage
Correct answer: Center of the chest on the lower half of the breastbone
Hands are placed in the center of the chest on the lower half of the sternum.
Question 5: Why is full chest recoil important between compressions?
- It allows the heart to refill with blood (Correct answer)
- It conserves rescuer energy
- It prevents rib fractures
- It increases breathing rate
Correct answer: It allows the heart to refill with blood
Letting the chest fully recoil allows blood to return to the heart before the next compression.
Question 6: What should you do immediately after recognizing an unresponsive adult who is not breathing normally?
- Activate emergency response and get an AED (Correct answer)
- Give two breaths first
- Check the pulse for five minutes
- Roll them onto their stomach
Correct answer: Activate emergency response and get an AED
Call for help and send for an AED before starting compressions.
Question 7: How long should you check for breathing and a pulse before starting CPR?
- No more than 10 seconds (Correct answer)
- At least 30 seconds
- One full minute
- Two minutes
Correct answer: No more than 10 seconds
Spend no more than 10 seconds checking for breathing and a pulse.
CPR Basic CPR 2
What is the correct compression-to-ventilation ratio for one-rescuer adult CPR?