NBRC MOCK TMC EXAM 2026 QUESTIONS
AND ANSWERS
◉ 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?
pH: 7.41
PaCO2: 37 mmHg
PaO2: 88 mmHg
HCO3: 26 mEq/L
SaO2: 95%
Hb: 14 g/dL
A. 12 mL/dL
B. 14 mL/dL
C. 16 mL/dL
D. 18 mL/dL. Answer: (Hb x 1.36 x SaO2) + (0.003 x PaO2)
(14 x 1.36 x 0.95) + (0.003 x 88)
18.088 + 0.264
= 18.352
, Answer: D. 18 mL/dL
◉ 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 severe COPD patient arrives in the emergency 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?
AND ANSWERS
◉ 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?
pH: 7.41
PaCO2: 37 mmHg
PaO2: 88 mmHg
HCO3: 26 mEq/L
SaO2: 95%
Hb: 14 g/dL
A. 12 mL/dL
B. 14 mL/dL
C. 16 mL/dL
D. 18 mL/dL. Answer: (Hb x 1.36 x SaO2) + (0.003 x PaO2)
(14 x 1.36 x 0.95) + (0.003 x 88)
18.088 + 0.264
= 18.352
, Answer: D. 18 mL/dL
◉ 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 severe COPD patient arrives in the emergency 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?
