BLS Automated External Defibrillator (AED) Use 5

Question 1

How often should AED pads be replaced when used on a victim during an extended resuscitation attempt?

Accepted Answer

Only if the pads visibly lose adhesion or the AED prompts you to change them

Answer

Pads should be replaced if they lose adhesion or the AED indicates a pad error; otherwise, leave them in place throughout the resuscitation.

Question 2

An AED delivers a shock. How long should rescuers perform CPR before the AED re-analyzes the rhythm?

Accepted Answer

2 minutes (5 cycles of 30:2 CPR)

Answer

After each shock, perform 2 minutes (approximately 5 cycles of 30:2) of high-quality CPR before allowing the AED to re-analyze the rhythm.

Question 3

A victim of lightning strike is found unresponsive. Is it safe to use an AED?

Accepted Answer

Yes, lightning victims do not retain electrical charge and AED use is safe and indicated

Answer

Lightning victims do not retain electrical charge; it is safe to touch them and use an AED immediately if indicated.

Question 4

Which of the following BEST explains why early defibrillation significantly improves survival from cardiac arrest?

Accepted Answer

Each minute without defibrillation in VF reduces survival by approximately 7-10%

Answer

Survival rates from VF decrease by approximately 7-10% for every minute without defibrillation, making rapid AED use critical to survival.

Question 5

An AED gives a 'check pads' or 'check electrodes' message. What is the most likely cause?

Accepted Answer

A pad is not properly adhering to the skin, has come loose, or a lead is disconnected

Answer

A 'check pads' message typically indicates poor pad contact due to skin moisture, hair, or a disconnected cable; reposition or replace pads and reconnect leads.

BLS - Basic Life Support Practice Test

BLS - Basic Life Support Practice Test

BLS Automated External Defibrillator (AED) Use 5