NBRC MOCK TMC PRECTICE TEST REVIEW EXAM WITH
CORRECT AND VERIFIED ANSWERS
The respiratory therapist receives an order to set up a
moderate level of O2 on a patient who arrives in the ED
breathing at a rate of 35 breaths/min. Which of the
following O2 delivery devices is most appropriate to use
in this situation?
A. Simple O2 mask at 10 L/min
B. Nasal cannula at 4 L/min
C. NRB Mask at 15 L/min
D. Air-entrainment mask at 40% O2 - answer-D. Air-
entrainment mask at 40% O2
A patient is receiving O2 from an E cylinder at 4 L/min
through a nasal cannula. The cylinder pressure is 1900
psig. How long will the cylinder run until it is empty?
A. 47 min
B. 1.7 h
C. 2.2 h
,D. 3.6 h - answer-E cylinder = 0.28
1900x0.28/4 = 133/60 = 2.21
Answer: C. 2 hours, 21 minutes
After the Respiratory Therapist sets up a nonrebreathing
mask on a patient at a flow rate of 10 L/min, the reservoir
bag collapses before the patient finishes inspiring. The RT
should do which of the following?
A. Change to a simple mask at a flow rate of 10 L/min
B. Remove the one-way valve from the exhalation port.
C. Place the patient on continuous positive airway
pressure (CPAP)
D. Increase the flow rate to 15 L/min - answer-D.
Increase the flow rate to 15 L/min
A patient with carbon monoxide (CO) poisoning can best
be treated with which of the following therapies?
A. Nasal Cannula at 6 L/min
B. Simple O2 mask at 10 L/min
, C. CPAP and 60% O2
D. Nonrebreathing mask - answer-D. Nonrebreathing
mask
The following blood gas levels have been obtained from a
patient using a 60% aerosol mask.
pH: 7.47
PaCO2: 31 mmHg
PaO2: 58 mmHg
What should the RT recommend at this time?
A. Place the patient on CPAP
B. Increase the O2 to 70%
C. Intubate and place the patient on mechanical
ventilation
D. Change to a nonrebreathing mask - answer-A. Place
the patient on CPAP
Given the following data, what is the patient's total
arterial O2 content?
CORRECT AND VERIFIED ANSWERS
The respiratory therapist receives an order to set up a
moderate level of O2 on a patient who arrives in the ED
breathing at a rate of 35 breaths/min. Which of the
following O2 delivery devices is most appropriate to use
in this situation?
A. Simple O2 mask at 10 L/min
B. Nasal cannula at 4 L/min
C. NRB Mask at 15 L/min
D. Air-entrainment mask at 40% O2 - answer-D. Air-
entrainment mask at 40% O2
A patient is receiving O2 from an E cylinder at 4 L/min
through a nasal cannula. The cylinder pressure is 1900
psig. How long will the cylinder run until it is empty?
A. 47 min
B. 1.7 h
C. 2.2 h
,D. 3.6 h - answer-E cylinder = 0.28
1900x0.28/4 = 133/60 = 2.21
Answer: C. 2 hours, 21 minutes
After the Respiratory Therapist sets up a nonrebreathing
mask on a patient at a flow rate of 10 L/min, the reservoir
bag collapses before the patient finishes inspiring. The RT
should do which of the following?
A. Change to a simple mask at a flow rate of 10 L/min
B. Remove the one-way valve from the exhalation port.
C. Place the patient on continuous positive airway
pressure (CPAP)
D. Increase the flow rate to 15 L/min - answer-D.
Increase the flow rate to 15 L/min
A patient with carbon monoxide (CO) poisoning can best
be treated with which of the following therapies?
A. Nasal Cannula at 6 L/min
B. Simple O2 mask at 10 L/min
, C. CPAP and 60% O2
D. Nonrebreathing mask - answer-D. Nonrebreathing
mask
The following blood gas levels have been obtained from a
patient using a 60% aerosol mask.
pH: 7.47
PaCO2: 31 mmHg
PaO2: 58 mmHg
What should the RT recommend at this time?
A. Place the patient on CPAP
B. Increase the O2 to 70%
C. Intubate and place the patient on mechanical
ventilation
D. Change to a nonrebreathing mask - answer-A. Place
the patient on CPAP
Given the following data, what is the patient's total
arterial O2 content?
