NPLQ First Aid and Emergency Response 2 — Questions and Answers
Question 1: What compression-to-ventilation ratio is recommended for single-rescuer adult CPR?
- 15:1
- 30:2 (Correct answer)
- 15:2
- 30:1
Correct answer: 30:2
Single-rescuer adult CPR uses a 30:2 ratio of chest compressions to rescue breaths per cycle.
Question 2: Before delivering an AED shock, which step is MOST critical?
- Give two rescue breaths
- Start chest compressions
- Ensure all rescuers and bystanders are clear of the victim (Correct answer)
- Remove any water from the victim's chest
Correct answer: Ensure all rescuers and bystanders are clear of the victim
Everyone must stand clear before an AED shock is delivered to prevent electric injury to rescuers.
Question 3: What is the correct chest compression depth for an adult during CPR?
- 1 to 1.5 inches
- 2 to 2.4 inches (Correct answer)
- 3 to 3.5 inches
- 0.5 to 1 inch
Correct answer: 2 to 2.4 inches
Adult chest compressions should be at least 2 inches but no more than 2.4 inches to effectively pump blood.
Question 4: Which technique is used for chest compressions during infant CPR?
- Heel of one hand only
- Two fingers or two thumb-encircling hands (Correct answer)
- Both hands interlocked
- One full palm centered on the chest
Correct answer: Two fingers or two thumb-encircling hands
Infant CPR uses two fingers or the two thumb-encircling technique to avoid applying excessive force to the small chest.
Question 5: What is the recommended rate of chest compressions during CPR for all age groups?
- 60 to 80 per minute
- 80 to 100 per minute
- 100 to 120 per minute (Correct answer)
- 120 to 140 per minute
Correct answer: 100 to 120 per minute
Current guidelines recommend a compression rate of 100 to 120 per minute for effective perfusion.
Question 6: Immediately after an AED delivers a shock, what should the rescuer do?
- Check for a pulse for up to 10 seconds
- Resume CPR beginning with chest compressions (Correct answer)
- Give two rescue breaths before compressions
- Wait for the AED to re-analyze the heart rhythm
Correct answer: Resume CPR beginning with chest compressions
After a shock, CPR must resume immediately starting with compressions without pausing to check for a pulse.
Question 7: In two-rescuer CPR for a child aged 1 to 8 years, what is the correct compression-to-ventilation ratio?
- 30:2
- 15:1
- 15:2 (Correct answer)
- 20:2
Correct answer: 15:2
Two-rescuer child CPR uses a 15:2 ratio, allowing more frequent ventilations than single-rescuer adult CPR.
NPLQ First Aid and Emergency Response 2
What compression-to-ventilation ratio is recommended for single-rescuer adult CPR?