CPR Adult CPR

Question 1

Where should you check for a pulse in an unresponsive adult?

Accepted Answer

Carotid pulse in the neck

Answer

For adults, the carotid pulse in the neck is the recommended site because it is the most accessible and reliable during an emergency.

Question 2

When two rescuers are performing CPR on an adult, what is the compression-to-ventilation ratio?

Accepted Answer

30:2

Answer

Two rescuers performing adult CPR still use a 30:2 ratio; a 15:2 ratio is reserved for two-rescuer infant and child CPR.

Question 3

How often should rescuers switch roles during adult CPR to avoid fatigue?

Accepted Answer

Every 2 minutes (about 5 cycles)

Answer

AHA recommends switching the compressor role every 2 minutes (approximately every 5 cycles of 30:2) to maintain high-quality compressions.

Question 4

What is the maximum allowable interruption time for chest compressions?

Accepted Answer

Less than 10 seconds

Answer

Compressions should not be interrupted for more than 10 seconds at a time to maintain coronary and cerebral perfusion pressure.

Question 5

What is the correct hand position for adult chest compressions?

Accepted Answer

Heel of one hand on the lower sternum with the other hand on top, fingers interlaced

Answer

Use the heel of one hand on the lower sternum, place the other hand on top, and interlace fingers to keep them off the ribs while compressing.

CPR Practice Test