CPR BLS for Healthcare Providers 2 — Questions and Answers
Question 1: For an adult in cardiac arrest, what is the recommended chest compression depth?
- At least 2 inches (5 cm) but no more than 2.4 inches (6 cm) (Correct answer)
- At least 1 inch (2.5 cm)
- About 3.5 inches (9 cm)
- Exactly 1.5 inches (4 cm)
Correct answer: At least 2 inches (5 cm) but no more than 2.4 inches (6 cm)
Adult compressions should be at least 2 inches but not exceeding 2.4 inches to maximize perfusion without injury.
Question 2: What is the target compression rate for high-quality CPR in all age groups?
- 60 to 80 per minute
- 100 to 120 per minute (Correct answer)
- 140 to 160 per minute
- 80 to 100 per minute
Correct answer: 100 to 120 per minute
The recommended compression rate is 100 to 120 per minute for adults, children, and infants.
Question 3: When performing two-rescuer CPR on a child, what compression-to-ventilation ratio is used?
- 30:2
- 15:2 (Correct answer)
- 5:1
- 10:2
Correct answer: 15:2
Two healthcare providers use a 15:2 ratio for infants and children.
Question 4: Why is full chest recoil important during compressions?
- It prevents rib fractures
- It allows the heart to refill with blood between compressions (Correct answer)
- It conserves rescuer energy
- It increases compression rate
Correct answer: It allows the heart to refill with blood between compressions
Allowing the chest to fully recoil lets the heart refill, improving cardiac output.
Question 5: What is the maximum recommended interruption time when pausing compressions to give breaths or analyze rhythm?
- Less than 10 seconds (Correct answer)
- About 30 seconds
- Up to 1 minute
- No limit
Correct answer: Less than 10 seconds
Interruptions in chest compressions should be limited to less than 10 seconds to maintain perfusion.
Question 6: During CPR with an advanced airway in place, how should ventilations be delivered?
- 30 compressions then 2 breaths
- 1 breath every 6 seconds without pausing compressions (Correct answer)
- 1 breath every 2 seconds
- Stop compressions for each breath
Correct answer: 1 breath every 6 seconds without pausing compressions
With an advanced airway, give continuous compressions and 1 breath every 6 seconds (10 breaths per minute).
Question 7: What should rescuers do to reduce fatigue and maintain compression quality during prolonged CPR?
- Slow the rate to conserve energy
- Switch compressors about every 2 minutes (Correct answer)
- Compress more shallowly over time
- Take a 30-second break each cycle
Correct answer: Switch compressors about every 2 minutes
Rescuers should switch roles roughly every 2 minutes to prevent fatigue-related decline in quality.
CPR BLS for Healthcare Providers 2
For an adult in cardiac arrest, what is the recommended chest compression depth?