CPR (Cardiopulmonary Resuscitation) Adult CPR and AED Usage Questions and Answers

Question 1

You are performing CPR on an adult when an AED arrives. After applying the pads, the AED analyzes the heart rhythm and advises 'No Shock Advised'. What is your immediate next step?

Accepted Answer

Immediately resume high-quality chest compressions, leaving the pads in place.

Answer

If an AED advises that no shock is needed, it means the person's heart rhythm is not shockable at that moment (e.g., asystole or pulseless electrical activity). The most critical action is to minimize interruptions to chest compressions to maintain blood flow to vital organs. You should leave the pads on as the AED will continue to monitor the rhythm and may advise a shock later.

Question 2

According to the latest guidelines, what is the correct rate and depth for chest compressions on an adult?

Accepted Answer

A rate of 100-120 compressions per minute and a depth of at least 2 inches (5 cm).

Answer

High-quality CPR is critical for survival. The 2025 American Heart Association guidelines emphasize pushing hard and fast. The recommended rate is 100 to 120 compressions per minute, and the depth should be at least 2 inches (5 cm) but not more than 2.4 inches for an average adult, ensuring full chest recoil between compressions.

Question 3

Which of the following represents the standard (anterolateral) placement of AED pads on an adult's bare chest?

Accepted Answer

One pad on the upper right chest (below the collarbone) and the other on the lower left side of the chest (below the armpit).

Answer

Proper AED pad placement is crucial for the electrical current to pass through the heart effectively. The standard anterolateral position for adults involves placing one pad on the victim's upper right chest, just below the clavicle, and the other pad on the lower left side of the chest, a few inches below the armpit.

Question 4

A lone rescuer finds an unresponsive adult who is not breathing normally. After confirming the scene is safe, what is the most critical first step in the Chain of Survival?

Accepted Answer

Activate the emergency response system (e.g., call 911 or the local emergency number).

Answer

The adult out-of-hospital Chain of Survival emphasizes immediate action. After ensuring scene safety and checking for responsiveness and breathing, the first crucial step is to activate the emergency response system. This ensures that professional help is dispatched as quickly as possible while the rescuer begins other life-saving interventions like CPR.

Question 5

What is the correct compression-to-ventilation ratio for a single rescuer performing CPR on an adult?

Accepted Answer

30 compressions to 2 breaths

Answer

For adult CPR, whether performed by one or two rescuers, the recommended ratio is 30 chest compressions followed by 2 rescue breaths. This ratio provides a balance between circulating blood and providing oxygen.

CPR (Cardiopulmonary Resuscitation) Practice Test

CPR (Cardiopulmonary Resuscitation) Practice Test

CPR (Cardiopulmonary Resuscitation) Adult CPR and AED Usage Questions and Answers