BLS Cardiac Arrest 2

Question 1

A patient is found unresponsive and not breathing normally. After activating EMS, what is the correct compression-to-ventilation ratio for a single rescuer performing adult CPR?

Accepted Answer

30:2

Answer

The AHA recommends a 30:2 compression-to-ventilation ratio for single-rescuer adult CPR.

Question 2

During cardiac arrest, which heart rhythm is most commonly associated with sudden cardiac arrest in adults?

Accepted Answer

Ventricular fibrillation (VF)

Answer

Ventricular fibrillation is the most common initial rhythm in sudden cardiac arrest in adults and is shockable.

Question 3

How soon after applying an AED should you analyze the rhythm if the device is ready?

Accepted Answer

Immediately upon attachment, pausing CPR only for analysis

Answer

Once the AED is attached, pause CPR only during rhythm analysis and shock delivery, then resume compressions immediately.

Question 4

A rescuer is performing high-quality CPR on an adult. Which finding indicates compressions are adequate?

Accepted Answer

Chest recoils fully between compressions

Answer

Full chest recoil between compressions allows the heart to refill with blood, which is a key indicator of high-quality CPR.

Question 5

When two rescuers are performing CPR on an adult with an advanced airway in place, what is the correct ventilation rate?

Accepted Answer

1 breath every 6 seconds (10 breaths/min)

Answer

With an advanced airway, deliver 1 breath every 6 seconds (10 breaths/min) asynchronously, without pausing compressions.

BLS - Basic Life Support Practice Test

BLS - Basic Life Support Practice Test

BLS Cardiac Arrest 2