NBRC Mock TMC Exam Review Questions and Answers Graded A

NBRC Mock TMC Exam Review
Questions and Answers Graded A
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 ✔✔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 ✔✔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 ✔✔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 ✔✔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