NBRC Mock TMC Exam Review
Study online at https://quizlet.com/_j5x9on
1. A patient is receiving O2 from an E cylinder at 4 E cylinder = 0.28
L/min through a nasal cannula. The cylinder pres- 1900x0.28/4 = 133/60 = 2.21
sure is 1900 psig. How long will the cylinder run
until it is empty? Answer: C. 2 hours, 21 minutes
A. 47 min
B. 1.7 h
C. 2.2 h
D. 3.6 h
2. After the Respiratory Therapist sets up a nonre- D. Increase the flow rate to 15
breathing mask on a patient at a flow rate of 10 L/min
L/min, the reservoir bag collapses before the pa-
tient 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
3. A patient with carbon monoxide (CO) poisoning D. Nonrebreathing mask
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
, NBRC Mock TMC Exam Review
Study online at https://quizlet.com/_j5x9on
4. The following blood gas levels have been obtained A. Place the patient on CPAP
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
5. Given the following data, what is the patient's total (Hb x 1.36 x SaO2) + (0.003 x
arterial O2 content? PaO2)
(14 x 1.36 x 0.95) + (0.003 x 88)
pH: 7.41 18.088 + 0.264
PaCO2: 37 mmHg = 18.352
PaO2: 88 mmHg
HCO3: 26 mEq/L Answer: D. 18 mL/dL
SaO2: 95%
Hb: 14 g/dL
A. 12 mL/dL
B. 14 mL/dL
C. 16 mL/dL
D. 18 mL/dL
6. The respiratory therapist receives an order to set D. Air-entrainment mask at 40%
up a moderate level of O2 on a patient who arrives O2
in the ED breathing at a rate of 35 breaths/min.
, NBRC Mock TMC Exam Review
Study online at https://quizlet.com/_j5x9on
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
7. A severe COPD patient arrives in the emergency B. Maintain the current O2 level
department on a 2 L/min nasal cannula. Arterial
blood gas results follow:
pH: 7.32
PaCO2: 67 mmHg
PaO2: 62 mmHg
HCO3: 38 mEq/L
Which of the following is the most appropriate
recommendation?
A. Increase the liter flow to 4 L/min
B. Maintain the current O2 level
C. Institute noninvasive positive pressure ventila-
tion (NPPV)
D. Place on a NRB mask at 12 L/min
8. The physician has ordered O2 to be set up on a 500 mL = 0.5 L
patient who has a spontaneous tidal volume of 0.5/1 = 0.5 L/s (change L/s to
500 mL and an inspiratory time of 1 second. Which ?/min by multiplying by 60
of the following O2 delivery devices will deliver a 0.5 L x 60= 30 L/min
flow that meets or exceeds this patient's inspira- Select the device that delivers a
tory flow? flow of at least 30L/min
Study online at https://quizlet.com/_j5x9on
1. A patient is receiving O2 from an E cylinder at 4 E cylinder = 0.28
L/min through a nasal cannula. The cylinder pres- 1900x0.28/4 = 133/60 = 2.21
sure is 1900 psig. How long will the cylinder run
until it is empty? Answer: C. 2 hours, 21 minutes
A. 47 min
B. 1.7 h
C. 2.2 h
D. 3.6 h
2. After the Respiratory Therapist sets up a nonre- D. Increase the flow rate to 15
breathing mask on a patient at a flow rate of 10 L/min
L/min, the reservoir bag collapses before the pa-
tient 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
3. A patient with carbon monoxide (CO) poisoning D. Nonrebreathing mask
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
, NBRC Mock TMC Exam Review
Study online at https://quizlet.com/_j5x9on
4. The following blood gas levels have been obtained A. Place the patient on CPAP
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
5. Given the following data, what is the patient's total (Hb x 1.36 x SaO2) + (0.003 x
arterial O2 content? PaO2)
(14 x 1.36 x 0.95) + (0.003 x 88)
pH: 7.41 18.088 + 0.264
PaCO2: 37 mmHg = 18.352
PaO2: 88 mmHg
HCO3: 26 mEq/L Answer: D. 18 mL/dL
SaO2: 95%
Hb: 14 g/dL
A. 12 mL/dL
B. 14 mL/dL
C. 16 mL/dL
D. 18 mL/dL
6. The respiratory therapist receives an order to set D. Air-entrainment mask at 40%
up a moderate level of O2 on a patient who arrives O2
in the ED breathing at a rate of 35 breaths/min.
, NBRC Mock TMC Exam Review
Study online at https://quizlet.com/_j5x9on
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
7. A severe COPD patient arrives in the emergency B. Maintain the current O2 level
department on a 2 L/min nasal cannula. Arterial
blood gas results follow:
pH: 7.32
PaCO2: 67 mmHg
PaO2: 62 mmHg
HCO3: 38 mEq/L
Which of the following is the most appropriate
recommendation?
A. Increase the liter flow to 4 L/min
B. Maintain the current O2 level
C. Institute noninvasive positive pressure ventila-
tion (NPPV)
D. Place on a NRB mask at 12 L/min
8. The physician has ordered O2 to be set up on a 500 mL = 0.5 L
patient who has a spontaneous tidal volume of 0.5/1 = 0.5 L/s (change L/s to
500 mL and an inspiratory time of 1 second. Which ?/min by multiplying by 60
of the following O2 delivery devices will deliver a 0.5 L x 60= 30 L/min
flow that meets or exceeds this patient's inspira- Select the device that delivers a
tory flow? flow of at least 30L/min
