Ch 10: Principles of Oxygen Therapy

Question 1

The proper oxygen flow setting for a bag-mask device is:

a. 6 LPM.
b. 8 LPM.
c. 10 LPM.
d. 15 LPM.

Answer 1

d. 15 LPM.

Question 2

The device that sits over the oxygen port and serves as a gasket and ensures an airtight seal between the regulator and the tank valve is the:

a. O ring.
b. G ring.
c regulator.
d. expander.

Answer 2

a. O ring.

Question 3

To deliver 45 percent oxygen via nasal cannula, you would set the flow rate at:

a. 2 LPM.
b. 4 LPM.
c. 6 LPM.
d. 8 LPM.

Answer 3

c. 6 LPM.

Question 4

A nasal cannula flowing at four liters a minute will deliver what concentration of oxygen?

a. 29 percent
b. 33 percent
c. 37 percent
d. 41 percent

Answer 4

c. 37 percent

Question 5

When a nasal cannula is used to deliver oxygen, the maximum flow rate that should be used is:

a. 2 LPM.
b. 4 LPM.
c. 6 LPM.
d. 8 LPM.

Answer 5

c. 6 LPM.

Question 6

The amount of air in the environment is about:

a 5 percent,
b 100 percent,
c. 21 percent.
d 35 percent

Answer 6

c. 21 percent.

Question 7

A device that moistens the air in an oxygen delivery system is called a(n):

a. vaporizer.
b. regulator.
c. humidifier.
d. pressurizer.

Answer 7

c. humidifier.

Question 8

Which of the following is the best method of determining how much oxygen remains in a tank?

a. Check the pressure regulator.
b. Lift the tank to see if it is full.
c. Tap on the bottom of the tank with a wrench.
d. Check the pressure gauge.

Answer 8

d. Check the pressure gauge.

Question 9

All of the following are oxygen safety guidelines EXCEPT:

a. open and close the valves quickly.
b. tighten all valves and connections hand-tight only.
c. never allow smoking around oxygen equipment.
d. always ensure that the O ring is in good condition.

Answer 9

a. open and close the valves quickly.

Question 10

The process of testing a high-pressure cylinder is called a:

a. hemodynamic test.
b. hydrodynamic test.
c. hydraulic test,
d. hydrostatic test,

Answer 10

d. hydrostatic test