36) Venturi masks are designed to mix oxygen with:
A) nitrogen.
B) inhaled air.
C) humidified air.
D) carbon monoxide.
Objective: 10.18
37) The oxygen flow rate for a nasal cannula should not exceed ________ liters per minute.
A) 8
B) 4
C) 6
D) 2
Objective: 10.19
17
38) Which of the following oxygen cylinders would normally run out after 50 minutes when
flowing at 10 liters per minute?
A) M tank
B) D tank
C) G tank
D) E tank
Objective: 10.19
39) You are attempting to replace the oxygen cylinder in your truck. After removing the regulator
from the old cylinder, removing the old cylinder, and placing the new cylinder in the oxygen
compartment, you attempt to connect the regulator. The new cylinder has a yellow stripe around
it instead of a green one but was stored with the green cylinders. You are unable to get the
regulator to seat properly and it will not turn. You should:
A) attempt to force the regulator onto the cylinder.
B) remove the cylinder and get a green cylinder.
C) replace the oxygen regulator with a new one.
D) put the old cylinder back on the truck.
Objective: 10.20
18
40) Which of the following is acceptable for maintaining a seal between an oxygen cylinder and
regulator?
A) Pop-off valve
B) Gasket
C) Grease plug
D) Medical grade adhesive tape
Objective: 10.20
41) Of the three types of oxygen flowmeters, which one can only be used upright?
A) Bourdon gauge flowmeter
B) Hudson gauge flowmeter
C) Constant flow selector valve
D) Pressure-compensated flowmeter
Objective: 10.20
19
42) Which of the following colors identifies an oxygen cylinder?
A) Orange and red
B) Black and tan
C) Blue and yellow
D) Green and white
Objective: 10.20
43) The safe residual for an oxygen cylinder is ________ psi.
A) 200
B) 300
C) 500
D) 1,000
Objective: 10.20
44) Which of the following is necessary to deliver oxygen to patients at a safe pressure?
A) Filter
B) Float ball
C) Regulator
D) Flowmeter
Objective: 10.21
20
45) Concerning the use of humidified oxygen, which of the following is true?
A) It should only be used when assisting ventilations with a bag-valve-mask device.
B) The water in the reservoir should be treated with chlorine tablets to prevent the growth of
bacteria.
C) It is not of great benefit during short transports but can make the patient more comfortable.
D) The water reservoir should be changed on a weekly basis.
Objective: 10.21
21