BLS Cardiac Arrest 3

Question 1

Which mnemonic represents the reversible causes of cardiac arrest that rescuers should consider?

Accepted Answer

The Hs and Ts

Answer

The Hs and Ts is the BLS/ACLS mnemonic for 8 potentially reversible causes of cardiac arrest (e.g., Hypovolemia, Hypoxia, Tension pneumothorax, Tamponade).

Question 2

A bystander witnesses an adult collapse and confirms unresponsiveness. She has no phone. What should she do first?

Accepted Answer

Send a bystander to call 911 and get an AED, then begin CPR

Answer

Send someone to activate EMS and retrieve an AED while you immediately begin CPR without delay.

Question 3

After a shock is delivered by an AED, what is the immediate next step?

Accepted Answer

Resume CPR beginning with chest compressions

Answer

Immediately after delivering a shock, resume CPR starting with chest compressions without checking the pulse first.

Question 4

A pediatric patient (8-year-old) is in cardiac arrest. Which statement about CPR for this child is correct?

Accepted Answer

Use a 15:2 ratio when two healthcare providers are present

Answer

For children, two healthcare providers should use a 15:2 compression-to-ventilation ratio, unlike the 30:2 ratio for adults.

Question 5

What is the primary purpose of CPR during cardiac arrest?

Accepted Answer

To maintain perfusion of the brain and vital organs

Answer

CPR maintains blood flow to the brain and vital organs, buying time until defibrillation or ROSC can restore effective cardiac function.

BLS - Basic Life Support Practice Test

BLS - Basic Life Support Practice Test

BLS Cardiac Arrest 3