NBRC Mock TMC Exam Review With
Complete solution Latest 2024/25
A patient is receiving O2 from an E cylinder at 4 L/min through a nasal cannula. The
II II II II II II II II II II II II II II II II
cylinder pressure is 1900 psig. How long will the cylinder run until it is empty?
II II II II II II II II II II II II II II II
A. 47 min II II
B. 1.7 h II II
C. 2.2 h II II
D. 3.6 h - E cylinder = 0.28
II II II II II II II II II
1900x0.28/4 = 133/60 = 2.21 II II II II II
Answer: C. 2 hours, 21 minutes II II II II II
After the Respiratory Therapist sets up a nonrebreathing mask on a patient at a flow rate
II II II II II II II II II II II II II II II II
of 10 L/min, the reservoir bag collapses before the patient finishes inspiring. The RT
II II II II II II II II II II II II II II
should do which of the following?
II II II II II II II
A. Change to a simple mask at a flow rate of 10 L/min
II II II II II II II II II II II II II
B. Remove the one-way valve from the exhalation port.
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C. Place the patient on continuous positive airway pressure (CPAP)
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D. Increase the flow rate to 15 L/min - D. Increase the flow rate to 15 L/min
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A patient with carbon monoxide (CO) poisoning can best be treated with which of the
II II II II II II II II II II II II II II II
following therapies?
II II II
A. Nasal Cannula at 6 L/min
II II II II II
B. Simple O2 mask at 10 L/min
II II II II II II
C. CPAP and 60% O2
II II II II II
D. Nonrebreathing mask - D. Nonrebreathing mask
II II II II II II II
The following blood gas levels have been obtained from a patient using a 60% aerosol
II II II II II II II II II II II II II II II
mask.
II II
pH: 7.47 II
PaCO2: 31 mmHg II II
PaO2: 58 mmHg II II
What should the RT recommend at this time?
II II II II II II II
A. Place the patient on CPAP
II II II II II
B. Increase the O2 to 70%
II II II II II II
C. Intubate and place the patient on mechanical ventilation
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, D. Change to a nonrebreathing mask - A. Place the patient on CPAP
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II Given the following data, what is the patient's total arterial O2 content?
II II II II II II II II II II II II
pH: 7.41 II
PaCO2: 37 mmHg II II
PaO2: 88 mmHg II II
HCO3: 26 mEq/L II II
SaO2: 95% II
Hb: 14 g/dL II II
A. 12 mL/dLII II
B. 14 mL/dLII II
C. 16 mL/dL II II
D. 18 mL/dL - (Hb x 1.36 x SaO2) + (0.003 x PaO2)
II II II II II II II II II II II II II II
(14 x 1.36 x 0.95) + (0.003 x 88)
II II II II II II II II II
18.088 + 0.264 II II
= 18.352
II II
Answer: D. 18 mL/dL II II II
The respiratory therapist receives an order to set up a moderate level of O2 on a patient
II II II II II II II II II II II II II II II II II
who arrives in the ED breathing at a rate of 35 breaths/min. Which of the following O2
II II II II II II II II II II II II II II II II II
delivery devices is most appropriate to use in this situation?
II II II II II II II II II II II
A. Simple O2 mask at 10 L/min
II II II II II II
B. Nasal cannula at 4 L/min
II II II II II
C. NRB Mask at 15 L/min
II II II II II
D. Air-entrainment mask at 40% O2 - D. Air-entrainment mask at 40% O2
II II II II II II II II II II II II II
A severe COPD patient arrives in the emergency department on a 2 L/min nasal cannula.
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Arterial blood gas results follow:
II II II II II II
pH: 7.32 II
PaCO2: 67 mmHg II II
PaO2: 62 mmHg II II
HCO3: 38 mEq/L II II
Which of the following is the most appropriate recommendation?
II II II II II II II II
A. Increase the liter flow to 4 L/min
II II II II II II II
B. Maintain the current O2 level
II II II II II
C. Institute noninvasive positive pressure ventilation (NPPV)
II II II II II II II
D. Place on a NRB mask at 12 L/min - B. Maintain the current O2 level
II II II II II II II II II II II II II II II II
Complete solution Latest 2024/25
A patient is receiving O2 from an E cylinder at 4 L/min through a nasal cannula. The
II II II II II II II II II II II II II II II II
cylinder pressure is 1900 psig. How long will the cylinder run until it is empty?
II II II II II II II II II II II II II II II
A. 47 min II II
B. 1.7 h II II
C. 2.2 h II II
D. 3.6 h - E cylinder = 0.28
II II II II II II II II II
1900x0.28/4 = 133/60 = 2.21 II II II II II
Answer: C. 2 hours, 21 minutes II II II II II
After the Respiratory Therapist sets up a nonrebreathing mask on a patient at a flow rate
II II II II II II II II II II II II II II II II
of 10 L/min, the reservoir bag collapses before the patient finishes inspiring. The RT
II II II II II II II II II II II II II II
should do which of the following?
II II II II II II II
A. Change to a simple mask at a flow rate of 10 L/min
II II II II II II II II II II II II II
B. Remove the one-way valve from the exhalation port.
II II II II II II II II
C. Place the patient on continuous positive airway pressure (CPAP)
II II II II II II II II II
D. Increase the flow rate to 15 L/min - D. Increase the flow rate to 15 L/min
II II II II II II II II II II II II II II II II II
A patient with carbon monoxide (CO) poisoning can best be treated with which of the
II II II II II II II II II II II II II II II
following therapies?
II II II
A. Nasal Cannula at 6 L/min
II II II II II
B. Simple O2 mask at 10 L/min
II II II II II II
C. CPAP and 60% O2
II II II II II
D. Nonrebreathing mask - D. Nonrebreathing mask
II II II II II II II
The following blood gas levels have been obtained from a patient using a 60% aerosol
II II II II II II II II II II II II II II II
mask.
II II
pH: 7.47 II
PaCO2: 31 mmHg II II
PaO2: 58 mmHg II II
What should the RT recommend at this time?
II II II II II II II
A. Place the patient on CPAP
II II II II II
B. Increase the O2 to 70%
II II II II II II
C. Intubate and place the patient on mechanical ventilation
II II II II II II II II II
, D. Change to a nonrebreathing mask - A. Place the patient on CPAP
II II II II II II II II II II II II II
II Given the following data, what is the patient's total arterial O2 content?
II II II II II II II II II II II II
pH: 7.41 II
PaCO2: 37 mmHg II II
PaO2: 88 mmHg II II
HCO3: 26 mEq/L II II
SaO2: 95% II
Hb: 14 g/dL II II
A. 12 mL/dLII II
B. 14 mL/dLII II
C. 16 mL/dL II II
D. 18 mL/dL - (Hb x 1.36 x SaO2) + (0.003 x PaO2)
II II II II II II II II II II II II II II
(14 x 1.36 x 0.95) + (0.003 x 88)
II II II II II II II II II
18.088 + 0.264 II II
= 18.352
II II
Answer: D. 18 mL/dL II II II
The respiratory therapist receives an order to set up a moderate level of O2 on a patient
II II II II II II II II II II II II II II II II II
who arrives in the ED breathing at a rate of 35 breaths/min. Which of the following O2
II II II II II II II II II II II II II II II II II
delivery devices is most appropriate to use in this situation?
II II II II II II II II II II II
A. Simple O2 mask at 10 L/min
II II II II II II
B. Nasal cannula at 4 L/min
II II II II II
C. NRB Mask at 15 L/min
II II II II II
D. Air-entrainment mask at 40% O2 - D. Air-entrainment mask at 40% O2
II II II II II II II II II II II II II
A severe COPD patient arrives in the emergency department on a 2 L/min nasal cannula.
II II II II II II II II II II II II II II II
Arterial blood gas results follow:
II II II II II II
pH: 7.32 II
PaCO2: 67 mmHg II II
PaO2: 62 mmHg II II
HCO3: 38 mEq/L II II
Which of the following is the most appropriate recommendation?
II II II II II II II II
A. Increase the liter flow to 4 L/min
II II II II II II II
B. Maintain the current O2 level
II II II II II
C. Institute noninvasive positive pressure ventilation (NPPV)
II II II II II II II
D. Place on a NRB mask at 12 L/min - B. Maintain the current O2 level
II II II II II II II II II II II II II II II II
