TMC EXAM – SECURE COMPREHENSIVE
THERAPIST SAE EXAM BANK 2026 ACTUAL
EXAM QUESTIONS AND 100% CORRECT
DETAILED ANSWERS
Core Domains
1. Patient Assessment and Diagnostic Evaluation
2. Airway Management and Clearance Techniques
3. Oxygen Therapy and Hypoxemia Management
4. Mechanical Ventilation: Modes, Settings, and Monitoring
5. Arterial Blood Gas (ABG) Interpretation and Acid-Base Balance
6. Pulmonary Function Testing and Diagnostic Procedures
7. Pharmacology and Aerosol Therapy
8. Neonatal and Pediatric Respiratory Care
9. Cardiopulmonary Physiology and Pathophysiology
10. Critical Care, Emergency Respiratory Care, and Clinical Decision-Making
Introduction
This comprehensive self-assessment examination is meticulously designed for
candidates preparing for the National Board for Respiratory Care (NBRC)
Therapist Multiple-Choice (TMC) Examination. The assessment covers all
essential domains required for successful credentialing as a Certified Respiratory
Therapist (CRT) and advancement toward Registered Respiratory Therapist (RRT)
status. Through a combination of multiple-choice questions and clinical scenarios,
candidates will demonstrate their understanding of patient assessment, airway
management, mechanical ventilation, ABG interpretation, pharmacology, neonatal
and pediatric care, and critical care decision-making. The questions are structured
to test not only recall of respiratory therapy principles but also the ability to apply
evidence-based practices to complex clinical situations. Each question includes a
detailed rationale explaining the correct answer and reinforcing clinical
reasoning. Successful completion of this examination demonstrates readiness for
,the official NBRC TMC credentialing examination and professional competency in
respiratory care practice.
SECTION ONE: QUESTIONS 1-150
1. A 58-year-old male with COPD has a resting SpO₂ of 88% on room air.
After ambulating 50 feet, his SpO₂ drops to 82%. Which of the following is the
most appropriate initial recommendation?
A. Increase the patient's resting oxygen flow rate
B. Prescribe continuous oxygen therapy at 2 L/min via nasal cannula
C. Recommend ambulatory oxygen therapy with a portable oxygen system
D. Order a 6-minute walk test with continuous SpO₂ monitoring
C. Recommend ambulatory oxygen therapy with a portable oxygen system
RATIONALE: The patient demonstrates exertional desaturation while
maintaining adequate oxygenation at rest. Ambulatory oxygen therapy allows the
patient to maintain SpO₂ ≥90% during activity. A 6-minute walk test would be
appropriate for further evaluation, but the immediate recommendation should
address the identified desaturation during ambulation.
2. Which of the following values for arterial carbon dioxide tension (PaCO₂) is
consistent with significant alveolar hypoventilation?
A. 20 torr
B. 30 torr
C. 40 torr
D. 50 torr
D. 50 torr
RATIONALE: A PaCO₂ of 50 torr indicates significant alveolar
hypoventilation. Normal PaCO₂ ranges from 35-45 torr. Values below normal
suggest hyperventilation, while values above 45 torr indicate hypoventilation and
inadequate alveolar ventilation.
,3. While administering 3.5 mg of albuterol to a patient with asthma in the
ICU, the respiratory therapist notes that the patient's heart rate increases
from 120 to 150 beats/minute. What is the appropriate modification for the
next treatment for this patient?
A. Reduce the dose of albuterol
B. Discontinue the treatment entirely
C. Change to 3 puffs of beclomethasone dipropionate
D. Change to 0.63 mg of levalbuterol
A. Reduce the dose of albuterol
RATIONALE: The patient is experiencing a significant tachycardia from the
albuterol, likely due to its beta-agonist effects. Reducing the dose of albuterol may
decrease the systemic side effects while still providing bronchodilation.
Levalbuterol is the R-isomer of albuterol and may have fewer cardiac side effects,
but dose reduction is the more appropriate initial modification.
4. A sudden decrease in end-tidal CO₂ occurs in a mechanically ventilated
patient. A repeat analysis yields the same results. Which of the following
situations might account for these readings?
A. The ventilator circuit has become disconnected
B. There is a leak around the endotracheal tube
C. There is an increase in alveolar dead space
D. The carbon dioxide absorber is exhausted
A. The ventilator circuit has become disconnected
RATIONALE: A sudden decrease in end-tidal CO₂ most commonly indicates a
ventilator circuit disconnection or a significant leak, which results in inadequate
delivery of tidal volume and loss of exhaled CO₂ to the monitor. An exhausted CO₂
absorber would cause an increase in inspired CO₂ and subsequently an increase in
end-tidal CO₂.
5. The ability to distinguish central apnea from obstructive apnea during a
sleep study requires the respiratory therapist to monitor which of the
following?
, 1. Electrocardiogram
2. Electroencephalogram
3. Nasal airflow
4. Chest wall impedance
A. 1 and 2 only
B. 3 and 4 only
C. 2, 3, and 4 only
D. 1, 2, and 3 only
B. 3 and 4 only
RATIONALE: Distinguishing central from obstructive apnea requires
monitoring nasal airflow (to detect absence of airflow) and chest wall impedance
(to detect respiratory effort). In central apnea, both airflow and respiratory effort
are absent. In obstructive apnea, airflow is absent but respiratory effort is present.
6. A 60 kg female patient with congestive heart failure receives NPPV with an
IPAP of 16 cm H₂O, EPAP of 10 cm H₂O, and FiO₂ of 0.70. Available
laboratory data includes: pH 7.40, PaCO₂ 42 torr, PaO₂ 145 torr, HCO₃ 26
mEq/L, SaO₂ 99%, CVP 10 cm H₂O. Breath sounds are clear. Which of the
following is the most appropriate recommendation?
A. Decrease IPAP to 12 cm H₂O
B. Decrease EPAP to 6 cm H₂O
C. Decrease FiO₂ to 0.50
D. Continue current settings
C. Decrease FiO₂ to 0.50
RATIONALE: The patient's PaO₂ of 145 torr with an FiO₂ of 0.70 indicates
significant hyperoxemia. Decreasing the FiO₂ to 0.50 would reduce the risk of
oxygen toxicity while maintaining adequate oxygenation. The ABG shows normal
pH, PaCO₂, and HCO₃, indicating adequate ventilation.
7. Dynamic hyperinflation is a major concern when using Volume Control,
Assist/Control ventilation in patients with which of the following conditions?
THERAPIST SAE EXAM BANK 2026 ACTUAL
EXAM QUESTIONS AND 100% CORRECT
DETAILED ANSWERS
Core Domains
1. Patient Assessment and Diagnostic Evaluation
2. Airway Management and Clearance Techniques
3. Oxygen Therapy and Hypoxemia Management
4. Mechanical Ventilation: Modes, Settings, and Monitoring
5. Arterial Blood Gas (ABG) Interpretation and Acid-Base Balance
6. Pulmonary Function Testing and Diagnostic Procedures
7. Pharmacology and Aerosol Therapy
8. Neonatal and Pediatric Respiratory Care
9. Cardiopulmonary Physiology and Pathophysiology
10. Critical Care, Emergency Respiratory Care, and Clinical Decision-Making
Introduction
This comprehensive self-assessment examination is meticulously designed for
candidates preparing for the National Board for Respiratory Care (NBRC)
Therapist Multiple-Choice (TMC) Examination. The assessment covers all
essential domains required for successful credentialing as a Certified Respiratory
Therapist (CRT) and advancement toward Registered Respiratory Therapist (RRT)
status. Through a combination of multiple-choice questions and clinical scenarios,
candidates will demonstrate their understanding of patient assessment, airway
management, mechanical ventilation, ABG interpretation, pharmacology, neonatal
and pediatric care, and critical care decision-making. The questions are structured
to test not only recall of respiratory therapy principles but also the ability to apply
evidence-based practices to complex clinical situations. Each question includes a
detailed rationale explaining the correct answer and reinforcing clinical
reasoning. Successful completion of this examination demonstrates readiness for
,the official NBRC TMC credentialing examination and professional competency in
respiratory care practice.
SECTION ONE: QUESTIONS 1-150
1. A 58-year-old male with COPD has a resting SpO₂ of 88% on room air.
After ambulating 50 feet, his SpO₂ drops to 82%. Which of the following is the
most appropriate initial recommendation?
A. Increase the patient's resting oxygen flow rate
B. Prescribe continuous oxygen therapy at 2 L/min via nasal cannula
C. Recommend ambulatory oxygen therapy with a portable oxygen system
D. Order a 6-minute walk test with continuous SpO₂ monitoring
C. Recommend ambulatory oxygen therapy with a portable oxygen system
RATIONALE: The patient demonstrates exertional desaturation while
maintaining adequate oxygenation at rest. Ambulatory oxygen therapy allows the
patient to maintain SpO₂ ≥90% during activity. A 6-minute walk test would be
appropriate for further evaluation, but the immediate recommendation should
address the identified desaturation during ambulation.
2. Which of the following values for arterial carbon dioxide tension (PaCO₂) is
consistent with significant alveolar hypoventilation?
A. 20 torr
B. 30 torr
C. 40 torr
D. 50 torr
D. 50 torr
RATIONALE: A PaCO₂ of 50 torr indicates significant alveolar
hypoventilation. Normal PaCO₂ ranges from 35-45 torr. Values below normal
suggest hyperventilation, while values above 45 torr indicate hypoventilation and
inadequate alveolar ventilation.
,3. While administering 3.5 mg of albuterol to a patient with asthma in the
ICU, the respiratory therapist notes that the patient's heart rate increases
from 120 to 150 beats/minute. What is the appropriate modification for the
next treatment for this patient?
A. Reduce the dose of albuterol
B. Discontinue the treatment entirely
C. Change to 3 puffs of beclomethasone dipropionate
D. Change to 0.63 mg of levalbuterol
A. Reduce the dose of albuterol
RATIONALE: The patient is experiencing a significant tachycardia from the
albuterol, likely due to its beta-agonist effects. Reducing the dose of albuterol may
decrease the systemic side effects while still providing bronchodilation.
Levalbuterol is the R-isomer of albuterol and may have fewer cardiac side effects,
but dose reduction is the more appropriate initial modification.
4. A sudden decrease in end-tidal CO₂ occurs in a mechanically ventilated
patient. A repeat analysis yields the same results. Which of the following
situations might account for these readings?
A. The ventilator circuit has become disconnected
B. There is a leak around the endotracheal tube
C. There is an increase in alveolar dead space
D. The carbon dioxide absorber is exhausted
A. The ventilator circuit has become disconnected
RATIONALE: A sudden decrease in end-tidal CO₂ most commonly indicates a
ventilator circuit disconnection or a significant leak, which results in inadequate
delivery of tidal volume and loss of exhaled CO₂ to the monitor. An exhausted CO₂
absorber would cause an increase in inspired CO₂ and subsequently an increase in
end-tidal CO₂.
5. The ability to distinguish central apnea from obstructive apnea during a
sleep study requires the respiratory therapist to monitor which of the
following?
, 1. Electrocardiogram
2. Electroencephalogram
3. Nasal airflow
4. Chest wall impedance
A. 1 and 2 only
B. 3 and 4 only
C. 2, 3, and 4 only
D. 1, 2, and 3 only
B. 3 and 4 only
RATIONALE: Distinguishing central from obstructive apnea requires
monitoring nasal airflow (to detect absence of airflow) and chest wall impedance
(to detect respiratory effort). In central apnea, both airflow and respiratory effort
are absent. In obstructive apnea, airflow is absent but respiratory effort is present.
6. A 60 kg female patient with congestive heart failure receives NPPV with an
IPAP of 16 cm H₂O, EPAP of 10 cm H₂O, and FiO₂ of 0.70. Available
laboratory data includes: pH 7.40, PaCO₂ 42 torr, PaO₂ 145 torr, HCO₃ 26
mEq/L, SaO₂ 99%, CVP 10 cm H₂O. Breath sounds are clear. Which of the
following is the most appropriate recommendation?
A. Decrease IPAP to 12 cm H₂O
B. Decrease EPAP to 6 cm H₂O
C. Decrease FiO₂ to 0.50
D. Continue current settings
C. Decrease FiO₂ to 0.50
RATIONALE: The patient's PaO₂ of 145 torr with an FiO₂ of 0.70 indicates
significant hyperoxemia. Decreasing the FiO₂ to 0.50 would reduce the risk of
oxygen toxicity while maintaining adequate oxygenation. The ABG shows normal
pH, PaCO₂, and HCO₃, indicating adequate ventilation.
7. Dynamic hyperinflation is a major concern when using Volume Control,
Assist/Control ventilation in patients with which of the following conditions?
