NBRC MOCK TMC EXAM REVIEW
NBRC MOCK TMC EXAM REVIEW
ACTUAL EXAM 2026/2027 | TMC
RESPIRATORY THERAPY EXAM |
VERIFIED Q&A | PASS GUARANTEED
- A+ GRADED
A patient is receiving 30% oxygen via an air-entrainment
mask at a flow of 5 L/min. The total flow delivered by this
device is which of the following?
A. 36 L/min
B. 45 L/min
C. 54 L/min
D. 60 L/min - CORRECT ANSWER -(*Use 21 with O2 %
less than 40%)
(100- 30%)/ (30%-*21) = 70/9 = 8/1 or 8:1 ratio
,NBRC MOCK TMC EXAM REVIEW
8+1= 9
9x5 = 45 L/min
B. 45 L/min
Secretions tend to become thicker if the inspired air has which
of the following characteristics?
A. A relative humidity of 100% at body temperature
B. 32 mg H2O per liter of gas
C. A water vapor pressure of 47 mmHg
D. 48 mg H2O per liter of gas - CORRECT ANSWER -B. 32
mg H2O per liter of gas
A patient receiving 38 mg H2O per liter of gas from a
nebulizer has a humidity deficit of which of the following?
,NBRC MOCK TMC EXAM REVIEW
A. 6 mg/L
B. 9 mg/L
C. 12 mg/L
D. 18 mg/L - CORRECT ANSWER -44-38= 6
A. 6 mg/L
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 - CORRECT ANSWER -E cylinder = 0.28
1900x0.28/4 = 133/60 = 2.21
, NBRC MOCK TMC EXAM REVIEW
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 - CORRECT 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
NBRC MOCK TMC EXAM REVIEW
ACTUAL EXAM 2026/2027 | TMC
RESPIRATORY THERAPY EXAM |
VERIFIED Q&A | PASS GUARANTEED
- A+ GRADED
A patient is receiving 30% oxygen via an air-entrainment
mask at a flow of 5 L/min. The total flow delivered by this
device is which of the following?
A. 36 L/min
B. 45 L/min
C. 54 L/min
D. 60 L/min - CORRECT ANSWER -(*Use 21 with O2 %
less than 40%)
(100- 30%)/ (30%-*21) = 70/9 = 8/1 or 8:1 ratio
,NBRC MOCK TMC EXAM REVIEW
8+1= 9
9x5 = 45 L/min
B. 45 L/min
Secretions tend to become thicker if the inspired air has which
of the following characteristics?
A. A relative humidity of 100% at body temperature
B. 32 mg H2O per liter of gas
C. A water vapor pressure of 47 mmHg
D. 48 mg H2O per liter of gas - CORRECT ANSWER -B. 32
mg H2O per liter of gas
A patient receiving 38 mg H2O per liter of gas from a
nebulizer has a humidity deficit of which of the following?
,NBRC MOCK TMC EXAM REVIEW
A. 6 mg/L
B. 9 mg/L
C. 12 mg/L
D. 18 mg/L - CORRECT ANSWER -44-38= 6
A. 6 mg/L
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 - CORRECT ANSWER -E cylinder = 0.28
1900x0.28/4 = 133/60 = 2.21
, NBRC MOCK TMC EXAM REVIEW
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 - CORRECT 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
