1|Page
NBRC TMC/CRT/RRT EXAMLATEST ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY
GRADED A+
Question 1
A patient with chronic obstructive pulmonary disease (COPD) presents with
increased dyspnea and wheezing. Which oxygen delivery device provides
precise oxygen concentrations?
A. Nasal cannula
B. Nonrebreather mask
C. Venturi mask
D. Simple face mask
Answer: C. Venturi mask
Rationale: Venturi masks deliver precise oxygen concentrations, especially for
COPD patients.
Question 2
Which arterial blood gas value indicates respiratory acidosis?
A. pH 7.50, PaCO2 30 mmHg
B. pH 7.25, PaCO2 55 mmHg
C. pH 7.48, HCO3 32 mEq/L
D. pH 7.40, PaCO2 40 mmHg
Answer: B. pH 7.25, PaCO2 55 mmHg
pg. 1
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Rationale: Low pH with elevated PaCO2 indicates respiratory acidosis.
Question 3
What is the normal range for arterial oxygen saturation (SaO2)?
A. 70–80%
B. 82–88%
C. 90–94%
D. 95–100%
Answer: D. 95–100%
Rationale: Normal arterial oxygen saturation ranges from 95–100%.
Question 4
Which condition is characterized by destruction of alveolar walls?
A. Chronic bronchitis
B. Asthma
C. Emphysema
D. Pneumonia
Answer: C. Emphysema
Rationale: Emphysema involves alveolar destruction and loss of elasticity.
Question 5
A patient receiving mechanical ventilation suddenly develops high peak airway
pressures. What is the first action the respiratory therapist should take?
A. Increase tidal volume
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B. Assess the patient and airway
C. Extubate the patient
D. Decrease oxygen concentration
Answer: B. Assess the patient and airway
Rationale: Immediate assessment identifies causes such as obstruction or
pneumothorax.
Question 6
Which medication is classified as a short-acting beta2 agonist?
A. Ipratropium
B. Salmeterol
C. Albuterol
D. Fluticasone
Answer: C. Albuterol
Rationale: Albuterol is a rapid bronchodilator used for acute bronchospasm.
Question 7
What is the primary purpose of positive end-expiratory pressure (PEEP)?
A. Decrease oxygenation
B. Prevent alveolar collapse
C. Lower functional residual capacity
D. Increase carbon dioxide retention
Answer: B. Prevent alveolar collapse
Rationale: PEEP maintains alveolar recruitment and improves oxygenation.
pg. 3
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Question 8
Which pulmonary function test finding is commonly associated with obstructive
lung disease?
A. Increased FEV1/FVC ratio
B. Decreased total lung capacity
C. Decreased FEV1/FVC ratio
D. Increased vital capacity
Answer: C. Decreased FEV1/FVC ratio
Rationale: Obstructive diseases reduce expiratory airflow rates.
Question 9
A patient with asthma is prescribed inhaled corticosteroids. What is the primary
purpose of this therapy?
A. Immediate bronchodilation
B. Reduce airway inflammation
C. Eliminate mucus production
D. Cure asthma permanently
Answer: B. Reduce airway inflammation
Rationale: Inhaled corticosteroids decrease airway inflammation over time.
Question 10
Which oxygen delivery device can provide the highest FiO2?
A. Nasal cannula
B. Venturi mask
pg. 4
NBRC TMC/CRT/RRT EXAMLATEST ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY
GRADED A+
Question 1
A patient with chronic obstructive pulmonary disease (COPD) presents with
increased dyspnea and wheezing. Which oxygen delivery device provides
precise oxygen concentrations?
A. Nasal cannula
B. Nonrebreather mask
C. Venturi mask
D. Simple face mask
Answer: C. Venturi mask
Rationale: Venturi masks deliver precise oxygen concentrations, especially for
COPD patients.
Question 2
Which arterial blood gas value indicates respiratory acidosis?
A. pH 7.50, PaCO2 30 mmHg
B. pH 7.25, PaCO2 55 mmHg
C. pH 7.48, HCO3 32 mEq/L
D. pH 7.40, PaCO2 40 mmHg
Answer: B. pH 7.25, PaCO2 55 mmHg
pg. 1
,2|Page
Rationale: Low pH with elevated PaCO2 indicates respiratory acidosis.
Question 3
What is the normal range for arterial oxygen saturation (SaO2)?
A. 70–80%
B. 82–88%
C. 90–94%
D. 95–100%
Answer: D. 95–100%
Rationale: Normal arterial oxygen saturation ranges from 95–100%.
Question 4
Which condition is characterized by destruction of alveolar walls?
A. Chronic bronchitis
B. Asthma
C. Emphysema
D. Pneumonia
Answer: C. Emphysema
Rationale: Emphysema involves alveolar destruction and loss of elasticity.
Question 5
A patient receiving mechanical ventilation suddenly develops high peak airway
pressures. What is the first action the respiratory therapist should take?
A. Increase tidal volume
pg. 2
,3|Page
B. Assess the patient and airway
C. Extubate the patient
D. Decrease oxygen concentration
Answer: B. Assess the patient and airway
Rationale: Immediate assessment identifies causes such as obstruction or
pneumothorax.
Question 6
Which medication is classified as a short-acting beta2 agonist?
A. Ipratropium
B. Salmeterol
C. Albuterol
D. Fluticasone
Answer: C. Albuterol
Rationale: Albuterol is a rapid bronchodilator used for acute bronchospasm.
Question 7
What is the primary purpose of positive end-expiratory pressure (PEEP)?
A. Decrease oxygenation
B. Prevent alveolar collapse
C. Lower functional residual capacity
D. Increase carbon dioxide retention
Answer: B. Prevent alveolar collapse
Rationale: PEEP maintains alveolar recruitment and improves oxygenation.
pg. 3
, 4|Page
Question 8
Which pulmonary function test finding is commonly associated with obstructive
lung disease?
A. Increased FEV1/FVC ratio
B. Decreased total lung capacity
C. Decreased FEV1/FVC ratio
D. Increased vital capacity
Answer: C. Decreased FEV1/FVC ratio
Rationale: Obstructive diseases reduce expiratory airflow rates.
Question 9
A patient with asthma is prescribed inhaled corticosteroids. What is the primary
purpose of this therapy?
A. Immediate bronchodilation
B. Reduce airway inflammation
C. Eliminate mucus production
D. Cure asthma permanently
Answer: B. Reduce airway inflammation
Rationale: Inhaled corticosteroids decrease airway inflammation over time.
Question 10
Which oxygen delivery device can provide the highest FiO2?
A. Nasal cannula
B. Venturi mask
pg. 4
