CPR Adult CPR and AED Usage 2

Question 1

What is the recommended compression-to-ventilation ratio for one-rescuer adult CPR?

Accepted Answer

30:2

Answer

15:2

Answer

5:1

Answer

10:1

Question 2

How deep should chest compressions be on an average adult?

Accepted Answer

At least 2 inches (5 cm)

Answer

About 1 inch (2.5 cm)

Answer

At least 3 inches (7.5 cm)

Answer

Half an inch (1.25 cm)

Question 3

What is the correct compression rate for adult CPR?

Accepted Answer

100 to 120 per minute

Answer

60 to 80 per minute

Answer

140 to 160 per minute

Answer

40 to 60 per minute

Question 4

Where should your hands be placed for adult chest compressions?

Accepted Answer

Center of the chest on the lower half of the breastbone

Answer

Over the left nipple

Answer

On the upper sternum near the collarbones

Answer

On the soft area below the ribs

Question 5

Why is allowing full chest recoil between compressions important?

Accepted Answer

It lets the heart refill with blood

Answer

It conserves the rescuer's energy

Answer

It prevents rib fractures

Answer

It increases compression depth

Question 6

What should you do if you are untrained or unwilling to give rescue breaths?

Accepted Answer

Provide hands-only (compression-only) CPR

Answer

Do nothing and wait for EMS

Answer

Give breaths only

Answer

Perform abdominal thrusts

Question 7

How long should you take to deliver each rescue breath?

Accepted Answer

About 1 second, enough to see the chest rise

Answer

About 5 seconds

Answer

As fast as possible

Answer

About 3 seconds with maximum force