First Aid FREE First Aid CPR and AED Usage Questions and Answers 2 — Questions and Answers
Question 1: When performing CPR on an adult, what is the correct compression-to-ventilation ratio for a single rescuer?
- 15 compressions to 2 breaths
- 30 compressions to 2 breaths (Correct answer)
- 30 compressions to 1 breath
- 20 compressions to 2 breaths
Correct answer: 30 compressions to 2 breaths
The American Heart Association recommends a 30:2 compression-to-ventilation ratio for single-rescuer adult CPR.
Question 2: What does the 'A' in the AED acronym stand for?
- Automatic (Correct answer)
- Advanced
- Assisted
- Arterial
Correct answer: Automatic
AED stands for Automated External Defibrillator, a device that automatically analyzes heart rhythm and delivers a shock if needed.
Question 3: Before using an AED, you should ensure the victim's chest is:
- Covered with a blanket
- Dry and free of excessive hair if possible (Correct answer)
- Wet to improve conductivity
- Coated with gel from a first aid kit
Correct answer: Dry and free of excessive hair if possible
A wet or very hairy chest can reduce pad adhesion and shock effectiveness, so the chest should be dried and shaved if a razor is available.
Question 4: At what depth should chest compressions be performed on an adult during CPR?
- At least 1 inch
- At least 2 inches (Correct answer)
- At least 3 inches
- At least 4 inches
Correct answer: At least 2 inches
The AHA guidelines specify compressions should be at least 2 inches (5 cm) deep but not greater than 2.4 inches (6 cm) for adults.
Question 5: If an AED delivers a shock, what should you do immediately after?
- Check the victim's pulse for 60 seconds
- Resume CPR starting with chest compressions (Correct answer)
- Remove the AED pads and wait
- Call 911 if you haven't already and stop CPR
Correct answer: Resume CPR starting with chest compressions
After a shock is delivered, CPR should be resumed immediately starting with chest compressions to maintain circulation.
Question 6: When should you NOT use an AED on a victim?
- When the victim is unconscious
- When the victim is unresponsive and not breathing normally
- When the victim is lying in a puddle of water (Correct answer)
- When the victim has a known heart condition
Correct answer: When the victim is lying in a puddle of water
An AED should not be used if the victim is lying in water, as the electrical shock could travel through the water and harm rescuers.
First Aid FREE First Aid CPR and AED Usage Questions and Answers 2
When performing CPR on an adult, what is the correct compression-to-ventilation ratio for a single rescuer?