CPR Procedures 2 — Questions and Answers
Question 1: After delivering 30 chest compressions on an adult, how many rescue breaths should you give in standard single-rescuer CPR?
- 1 breath
- 2 breaths (Correct answer)
- 3 breaths
- 5 breaths
Correct answer: 2 breaths
The standard adult compression-to-ventilation ratio is 30 compressions to 2 breaths.
Question 2: What is the correct hand position for chest compressions on an adult?
- On the upper sternum near the collarbones
- Over the lower left ribs
- On the center of the chest, lower half of the sternum (Correct answer)
- On the abdomen below the navel
Correct answer: On the center of the chest, lower half of the sternum
Hands should be placed on the lower half of the sternum at the center of the chest.
Question 3: At what rate should chest compressions be delivered for an adult?
- 60-80 per minute
- 100-120 per minute (Correct answer)
- 140-160 per minute
- 40-60 per minute
Correct answer: 100-120 per minute
Effective compressions are delivered at a rate of 100 to 120 per minute.
Question 4: How deep should chest compressions be on an average adult?
- About 0.5 inch
- About 1 inch
- At least 2 inches (5 cm) (Correct answer)
- At least 4 inches (10 cm)
Correct answer: At least 2 inches (5 cm)
Adult compressions should be at least 2 inches (5 cm) but no more than 2.4 inches deep.
Question 5: Why is allowing full chest recoil between compressions important?
- It lets the heart refill with blood (Correct answer)
- It conserves rescuer energy only
- It prevents rib fractures entirely
- It is not actually important
Correct answer: It lets the heart refill with blood
Full recoil allows the heart to refill with blood, improving the next compression's blood flow.
Question 6: When two rescuers perform CPR on an adult, how often should they switch the compressor role?
- Every 30 seconds
- About every 2 minutes (5 cycles) (Correct answer)
- Only when exhausted
- Every 10 minutes
Correct answer: About every 2 minutes (5 cycles)
Rescuers should switch roughly every 2 minutes to prevent fatigue and maintain quality compressions.
Question 7: What should you do first when you find an unresponsive adult and you are alone with a phone?
- Begin compressions immediately without calling anyone
- Check responsiveness and call 911 / activate emergency response (Correct answer)
- Give 2 rescue breaths first
- Search for the cause of collapse
Correct answer: Check responsiveness and call 911 / activate emergency response
Check responsiveness and activate emergency response so help and an AED are on the way.
CPR Procedures 2
After delivering 30 chest compressions on an adult, how many rescue breaths should you give in standard single-rescuer CPR?