NBRC TMC/CRT/RRT
Exam 2026 | Study Guide,
Exam Prep & Practice
Questions
This Resource Includes
➢NBRC TMC exam practice questions
➢CRT exam preparation material
➢RRT exam practice and review
➢Questions with answers and detailed rationales
, NBRC TMC/CRT/RRT Exam
2026 | Study Guide, Exam Prep
& Practice Questions
1. Which of the following is needed to calculate alveolar oxygen
tension?
A. VD/VT, PAO2
B. BP and FiO2
C. PetCO2 and PaO2
D. QS/QT, deadspace
Answer: B. BP and FiO2
Rationale: The alveolar oxygen tension (PAO2) is calculated using the
alveolar air equation, which requires barometric pressure (BP), FiO2,
and PaCO2. Of the options given, only BP and FiO2 are part of the
formula.
2. L/min/m2 is the unit of measure for:
,A. Systemic vascular resistance
B. Cardiac output
C. Cardiac index
D. Stroke volume
Answer: C. Cardiac index
Rationale: Cardiac index is cardiac output normalized to body surface
area, expressed in L/min/m². Cardiac output is measured in L/min,
stroke volume in mL/beat, and SVR in dynes·sec/cm⁵.
3. A spontaneously breathing patient has the following arterial blood
gas results: pH 7.38, PaCO2 42 mmHg, PaO2 76 mmHg, HCO3- 24
mEq/L, BE 0 mEq/L. Which of the following supplemental oxygen
levels is most appropriate?
A. 2 L/min nasal cannula
B. 5 L/min nasal cannula
C. Non-rebreathing mask
D. Venturi mask at 30%
Answer: B. 5 L/min nasal cannula
Rationale: A patient showing signs of hypoxemia should receive
supplemental oxygen. If the patient is not a COPD patient and the
, situation is not an emergency, the proper supplemental oxygen is an
adult therapeutic dose (40% to 55%). Only 5 L/min nasal cannula
approaches this range. 2 L/min is insufficient, and non-rebreathing
mask or 30% Venturi are either too much or too little.
4. Left heart failure would be manifested in which of the following
values?
A. CVP and mPAP
B. mPAP and wedge pressure
C. MAP and SVR
D. Cardiac output and wedge pressure
Answer: D. Cardiac output and wedge pressure
Rationale: The function of the left heart, specifically the left ventricle, is
best assessed hemodynamically by looking at values that precede and
follow the left heart. Pulmonary capillary wedge pressure (PCWP) and
cardiac output are the values found before and after the left heart.
5. Which of the following findings is most closely associated with
increased airway resistance?
A. Reduced SpO2
B. Accessory muscle use
Exam 2026 | Study Guide,
Exam Prep & Practice
Questions
This Resource Includes
➢NBRC TMC exam practice questions
➢CRT exam preparation material
➢RRT exam practice and review
➢Questions with answers and detailed rationales
, NBRC TMC/CRT/RRT Exam
2026 | Study Guide, Exam Prep
& Practice Questions
1. Which of the following is needed to calculate alveolar oxygen
tension?
A. VD/VT, PAO2
B. BP and FiO2
C. PetCO2 and PaO2
D. QS/QT, deadspace
Answer: B. BP and FiO2
Rationale: The alveolar oxygen tension (PAO2) is calculated using the
alveolar air equation, which requires barometric pressure (BP), FiO2,
and PaCO2. Of the options given, only BP and FiO2 are part of the
formula.
2. L/min/m2 is the unit of measure for:
,A. Systemic vascular resistance
B. Cardiac output
C. Cardiac index
D. Stroke volume
Answer: C. Cardiac index
Rationale: Cardiac index is cardiac output normalized to body surface
area, expressed in L/min/m². Cardiac output is measured in L/min,
stroke volume in mL/beat, and SVR in dynes·sec/cm⁵.
3. A spontaneously breathing patient has the following arterial blood
gas results: pH 7.38, PaCO2 42 mmHg, PaO2 76 mmHg, HCO3- 24
mEq/L, BE 0 mEq/L. Which of the following supplemental oxygen
levels is most appropriate?
A. 2 L/min nasal cannula
B. 5 L/min nasal cannula
C. Non-rebreathing mask
D. Venturi mask at 30%
Answer: B. 5 L/min nasal cannula
Rationale: A patient showing signs of hypoxemia should receive
supplemental oxygen. If the patient is not a COPD patient and the
, situation is not an emergency, the proper supplemental oxygen is an
adult therapeutic dose (40% to 55%). Only 5 L/min nasal cannula
approaches this range. 2 L/min is insufficient, and non-rebreathing
mask or 30% Venturi are either too much or too little.
4. Left heart failure would be manifested in which of the following
values?
A. CVP and mPAP
B. mPAP and wedge pressure
C. MAP and SVR
D. Cardiac output and wedge pressure
Answer: D. Cardiac output and wedge pressure
Rationale: The function of the left heart, specifically the left ventricle, is
best assessed hemodynamically by looking at values that precede and
follow the left heart. Pulmonary capillary wedge pressure (PCWP) and
cardiac output are the values found before and after the left heart.
5. Which of the following findings is most closely associated with
increased airway resistance?
A. Reduced SpO2
B. Accessory muscle use
