P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
NBRC TMC Exams Y O X W U
V T Q R P Questions &
Answers Updated
2026/2027 Edition
Verified Answers Exam Ready 698 QUESTIONS
DOCUMENT OVERVIEW
This document contains 698 respiratory therapy exam questions with their correct answers,
providing a comprehensive resource for exam preparation. It covers a broad range of
essential respiratory care concepts, making it suitable for in-depth study, review, and direct
preparation for NBRC TMC certification.
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 698
Quality control material has published values for pH of 7.30, PO2 of 85 mm Hg.
Documentation indicates the range of pH is 0.5% and is 3% for PO2. Machine results are as
follows:
pH PO2 (mmHg)
Run 1 7.33 83
Run 2 7.25 86
Run 3 7.29 80
Which quality control runs indicate the machine is out of control?
A. 2 and 3
B. 1, 2, and 3
C. 1 and 2
D. 1 and 3
ANSWER
The correct answer is : A
Q2 QUESTION 2 OF 698
Quality control data for an arterial blood gas analyzer is plotted on a graph that has a range
of 4 standard deviations (2 SD up and 2 SD down). Points on the graph show a gradual rise
from below the mean to above the mean. All points are within 2 SD of the mean. The
respiratory supervisor should
A. remove this machine from service
B. call the medical director for direction
C. monitor this machine closely
D. replace the electrodes
ANSWER
The correct answer is : C
Page 2
, Q3 QUESTION 3 OF 698
The sudden sounding of a high-pressure ventilator alarm is noted on a patient receiving
volume controlled mechanical ventilation. The respiratory therapist notes the endotracheal
tube is at 27 cm at the teeth and that breath sounds are absent when auscultating the left
hemithorax. The therapist should immediately
A. withdraw the endotracheal tube until breath sounds are bilateral
B. advance the endotracheal tube until breath sounds can be auscultated over the left chest
C. prepare for insertion of chest tubes in the left thorax
D. check the air pressure of the tube cuff
ANSWER
The correct answer is : A
Q4 QUESTION 4 OF 698
Which of the following ventilator circuit change frequencies is important to minimize
nosocomial infections among patients receiving mechanical ventilation?
A. every 14 days
B. monthly
C. daily
D. when soiled
ANSWER
The correct answer is : D
Q5 QUESTION 5 OF 698
In which of the following situations should an HME be replaced with heated humidity?
A. afebrile conditions
B. presence of thick secretions
C. patient has asthma
D. patient is hyperthermic
ANSWER
The correct answer is : B
Page 3
, Q6 QUESTION 6 OF 698
Which of the following should be monitored for a ventilator-dependent newborn with IRDS?
A. urine specific gravity
B. fluid input and output
C. pH
D. gas distribution (SBN2) in the lungs
ANSWER
The correct answer is : B
Q7 QUESTION 7 OF 698
A written teaching plan for a pediatric patient with chronic asthma should include
5
A. PEFR monitoring and proper MDI use
B. determination of oxygen saturation
C. titration of oxygen
D. proper titration of bronchodilator dosage
ANSWER
The correct answer is : A
Q8 QUESTION 8 OF 698
Which of the following is needed to calculate minute alveolar ventilation?
A. tidal volume, weight, respiratory rate
B. C(a-v)O2 and VT
C. PAO2 and tidal volume
D. VD/VT and PAO2
ANSWER
The correct answer is : A
Page 4
NBRC TMC Exams Y O X W U
V T Q R P Questions &
Answers Updated
2026/2027 Edition
Verified Answers Exam Ready 698 QUESTIONS
DOCUMENT OVERVIEW
This document contains 698 respiratory therapy exam questions with their correct answers,
providing a comprehensive resource for exam preparation. It covers a broad range of
essential respiratory care concepts, making it suitable for in-depth study, review, and direct
preparation for NBRC TMC certification.
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 698
Quality control material has published values for pH of 7.30, PO2 of 85 mm Hg.
Documentation indicates the range of pH is 0.5% and is 3% for PO2. Machine results are as
follows:
pH PO2 (mmHg)
Run 1 7.33 83
Run 2 7.25 86
Run 3 7.29 80
Which quality control runs indicate the machine is out of control?
A. 2 and 3
B. 1, 2, and 3
C. 1 and 2
D. 1 and 3
ANSWER
The correct answer is : A
Q2 QUESTION 2 OF 698
Quality control data for an arterial blood gas analyzer is plotted on a graph that has a range
of 4 standard deviations (2 SD up and 2 SD down). Points on the graph show a gradual rise
from below the mean to above the mean. All points are within 2 SD of the mean. The
respiratory supervisor should
A. remove this machine from service
B. call the medical director for direction
C. monitor this machine closely
D. replace the electrodes
ANSWER
The correct answer is : C
Page 2
, Q3 QUESTION 3 OF 698
The sudden sounding of a high-pressure ventilator alarm is noted on a patient receiving
volume controlled mechanical ventilation. The respiratory therapist notes the endotracheal
tube is at 27 cm at the teeth and that breath sounds are absent when auscultating the left
hemithorax. The therapist should immediately
A. withdraw the endotracheal tube until breath sounds are bilateral
B. advance the endotracheal tube until breath sounds can be auscultated over the left chest
C. prepare for insertion of chest tubes in the left thorax
D. check the air pressure of the tube cuff
ANSWER
The correct answer is : A
Q4 QUESTION 4 OF 698
Which of the following ventilator circuit change frequencies is important to minimize
nosocomial infections among patients receiving mechanical ventilation?
A. every 14 days
B. monthly
C. daily
D. when soiled
ANSWER
The correct answer is : D
Q5 QUESTION 5 OF 698
In which of the following situations should an HME be replaced with heated humidity?
A. afebrile conditions
B. presence of thick secretions
C. patient has asthma
D. patient is hyperthermic
ANSWER
The correct answer is : B
Page 3
, Q6 QUESTION 6 OF 698
Which of the following should be monitored for a ventilator-dependent newborn with IRDS?
A. urine specific gravity
B. fluid input and output
C. pH
D. gas distribution (SBN2) in the lungs
ANSWER
The correct answer is : B
Q7 QUESTION 7 OF 698
A written teaching plan for a pediatric patient with chronic asthma should include
5
A. PEFR monitoring and proper MDI use
B. determination of oxygen saturation
C. titration of oxygen
D. proper titration of bronchodilator dosage
ANSWER
The correct answer is : A
Q8 QUESTION 8 OF 698
Which of the following is needed to calculate minute alveolar ventilation?
A. tidal volume, weight, respiratory rate
B. C(a-v)O2 and VT
C. PAO2 and tidal volume
D. VD/VT and PAO2
ANSWER
The correct answer is : A
Page 4
