Last Updated on June 13, 2024
BLS Pretest Chapter 3: Use of Automated External Defibrillator. Chapter 3 contains 25 MCQs with answers and explanations on the use of an automated external defibrillator (AED), AED steps, and self-assessment for AEDs.
This chapter helps reinforce the proper procedures and understanding of using an AED in an emergency situation. This Basic Life Support (BLS) Chapter 3 Practice test is based on the later American Heart Association (AHA) guideline.
BLS Pretest Chapter 3
Use of Automated External Defibrillator (AED)
What is the first step when using an AED on an unresponsive adult?
- (A) Open the AED case
- (B) Attach electrode pads
- (C) Turn on the AED
- (D) Dry the chest if wet
Where should the AED pads be placed on an adult?
- (A) One pad on the upper left chest and one on the lower right chest
- (B) Both pads on the upper chest
- (C) One pad on the upper right chest and one on the lower left chest
- (D) Both pads on the lower chest
What should you do if the AED prompts “Check Electrodes”?
- (A) Turn off the AED
- (B) Ensure the electrodes make good contact with the skin
- (C) Replace the electrodes
- (D) Move the pads to a different location
AED Steps
What is the correct sequence of steps when using an AED?
- (A) Turn on the AED, attach electrode pads, analyze rhythm, deliver shock
- (B) Attach electrode pads, turn on the AED, analyze rhythm, deliver shock
- (C) Turn on the AED, analyze rhythm, attach electrode pads, deliver shock
- (D) Analyze rhythm, turn on the AED, attach electrode pads, deliver shock
When should you resume CPR after using an AED?
- (A) Immediately after the shock is delivered
- (B) After 1 minute
- (C) After 2 minutes
- (D) After checking for a pulse
How should you position the AED pads if the person has a pacemaker or implanted defibrillator?
- (A) Directly over the device
- (B) Adjacent to the device, avoiding direct contact
- (C) One pad on the device, one away
- (D) Anywhere on the chest
Self-Assessment for AED
What does AED stand for?
- (A) Automatic Energy Delivery
- (B) Automated External Device
- (C) Automated External Defibrillator
- (D) Autonomous Energy Defibrillator
When should the AED be applied during an adult cardiac arrest?
- (A) As soon as it is available
- (B) After 5 minutes of CPR
- (C) After giving 2 rescue breaths
- (D) Only if the victim is unresponsive and not breathing
What should you do if the AED advises “Shock”?
- (A) Clear the person and deliver the shock
- (B) Deliver two additional minutes of CPR before delivering the shock
- (C) Ventilate while shock is delivered
- (D) Assume error and do not deliver shock
What is the next step after delivering a shock with an AED?
- (A) Reassess for a pulse
- (B) Do chest compressions only
- (C) Resume CPR starting with chest compressions
- (D) Do ventilation only
What is the purpose of letting the AED analyze the rhythm?
- (A) To check the battery life
- (B) To determine if a shock is needed
- (C) To reset the device
- (D) To measure the heart rate
Additional MCQs for AED
What should you do if the AED indicates “No Shock Advised”?
- (A) Continue to monitor the victim
- (B) Restart the AED
- (C) Resume CPR immediately
- (D) Check for a pulse
How often should you pause CPR to let the AED reanalyze the heart rhythm?
- (A) Every 30 seconds
- (B) Every minute
- (C) Every 2 minutes
- (D) Every 5 minutes
What should you do before pressing the shock button on the AED?
- (A) Ensure the person is still
- (B) Check the battery level
- (C) Ensure no one is touching the person
- (D) Turn off the AED
What should be done if the AED pads do not adhere properly due to chest hair?
- (A) Shave the area where the pads will be placed
- (B) Move the pads to a different location
- (C) Press harder on the pads
- (D) Use more pads
Why is it important to dry the chest before placing AED pads?
- (A) To improve electrical conductivity
- (B) To prevent the pads from slipping
- (C) To ensure the AED can analyze the rhythm
- (D) All of the above
What action should be taken if the AED does not power on?
- (A) Check the battery and replace it if necessary
- (B) Use another AED if available
- (C) Continue CPR without the AED
- (D) All of the above
What is the purpose of the AED analyzing the rhythm?
- (A) To determine if a shock is needed
- (B) To measure heart rate
- (C) To check battery life
- (D) To reset the device
How should you proceed if the AED delivers a shock and the person remains unresponsive?
- (A) Deliver another shock immediately
- (B) Wait 5 minutes and recheck
- (C) Resume CPR immediately
- (D) Check for a pulse
What is the minimum time to check for responsiveness before applying the AED?
- (A) 5 seconds
- (B) 10 seconds
- (C) 15 seconds
- (D) 20 seconds
Chapter Wise Tests
- Chapter 1: General Concepts of Basic Life Support
- Chapter 2: BLS for Adults
- Chapter 3: Use of Automated External Defibrillator
- Chapter 4: BLS for Children
- Chapter 5: BLS for Infants (0 to 12 months)
- Chapter 6: AED for Children and Infants
- Chapter 7: AED for Airway Management
- Chapter 8: Relief of Choking
Full-Lenght Practice Tests