Texas Respiratory Care Practitioner Licensing Exam
Practice Questions WITH CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A
|INSTANT DOWNLOAD PDF
1. Which of the following are indications for oxygen therapy in
adults?
A. PaO₂ < 60 mmHg
B. SpO₂ < 90%
C. Hypercapnia
D. Cyanosis
Correct Answer: A, B, D
Rationale: Oxygen therapy is indicated for hypoxemia (PaO₂ <
60 mmHg, SpO₂ < 90%) and clinical signs like cyanosis.
Hypercapnia alone is not always an indication.
2. Which of the following are common hazards of oxygen
therapy?
A. Oxygen toxicity
B. Hypoventilation in COPD
C. Atelectasis from nitrogen washout
D. Hypercapnia
Correct Answer: A, B, C
Rationale: Oxygen toxicity, atelectasis, and hypoventilation in
,COPD patients can occur with high oxygen concentrations.
Hypercapnia may result indirectly but is not a direct hazard.
3. In mechanical ventilation, which of the following
parameters define the tidal volume?
A. Volume delivered per breath
B. Patient’s ideal body weight
C. Respiratory rate
D. Minute ventilation
Correct Answer: A, B
Rationale: Tidal volume is the volume of air delivered per breath
and is calculated based on the patient’s ideal body weight.
4. Which of the following are indications for non-invasive
ventilation (NIV)?
A. Acute exacerbation of COPD
B. Cardiogenic pulmonary edema
C. Respiratory failure with altered mental status
D. Hypoxemic respiratory failure
Correct Answer: A, B, D
Rationale: NIV is indicated for COPD exacerbations, pulmonary
edema, and some cases of hypoxemic respiratory failure.
Altered mental status is a contraindication.
,5. Which of the following statements about asthma are
correct?
A. It is characterized by reversible airway obstruction
B. Inhaled corticosteroids are first-line therapy for persistent
asthma
C. Peak flow measurement is useful for monitoring
D. Beta-blockers are first-line therapy
Correct Answer: A, B, C
Rationale: Asthma involves reversible obstruction; inhaled
corticosteroids are standard long-term therapy; peak flow
monitoring helps manage symptoms. Beta-blockers can worsen
asthma.
6. Which of the following blood gas values suggest respiratory
acidosis?
A. pH < 7.35
B. PaCO₂ > 45 mmHg
C. HCO₃⁻ > 28 mEq/L
D. PaO₂ < 60 mmHg
Correct Answer: A, B
Rationale: Respiratory acidosis is indicated by low pH and
elevated PaCO₂. HCO₃⁻ may be elevated if compensated. PaO₂ is
unrelated.
, 7. Indications for chest physiotherapy include:
A. Cystic fibrosis
B. Pneumonia with excessive secretions
C. Acute asthma exacerbation
D. Atelectasis prevention
Correct Answer: A, B, D
Rationale: Chest physiotherapy helps mobilize secretions in CF,
pneumonia, and prevents atelectasis. It is not indicated in acute
asthma exacerbation.
8. Common complications of endotracheal intubation include:
A. Hypoxia
B. Esophageal intubation
C. Laryngospasm
D. Pulmonary embolism
Correct Answer: A, B, C
Rationale: Hypoxia, esophageal intubation, and laryngospasm
are immediate risks. Pulmonary embolism is not a direct
complication.
9. Indications for mechanical ventilation include:
A. PaO₂ < 60 mmHg despite oxygen therapy
B. PaCO₂ > 50 mmHg with pH < 7.25
C. Severe respiratory distress
D. Stable COPD
Practice Questions WITH CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A
|INSTANT DOWNLOAD PDF
1. Which of the following are indications for oxygen therapy in
adults?
A. PaO₂ < 60 mmHg
B. SpO₂ < 90%
C. Hypercapnia
D. Cyanosis
Correct Answer: A, B, D
Rationale: Oxygen therapy is indicated for hypoxemia (PaO₂ <
60 mmHg, SpO₂ < 90%) and clinical signs like cyanosis.
Hypercapnia alone is not always an indication.
2. Which of the following are common hazards of oxygen
therapy?
A. Oxygen toxicity
B. Hypoventilation in COPD
C. Atelectasis from nitrogen washout
D. Hypercapnia
Correct Answer: A, B, C
Rationale: Oxygen toxicity, atelectasis, and hypoventilation in
,COPD patients can occur with high oxygen concentrations.
Hypercapnia may result indirectly but is not a direct hazard.
3. In mechanical ventilation, which of the following
parameters define the tidal volume?
A. Volume delivered per breath
B. Patient’s ideal body weight
C. Respiratory rate
D. Minute ventilation
Correct Answer: A, B
Rationale: Tidal volume is the volume of air delivered per breath
and is calculated based on the patient’s ideal body weight.
4. Which of the following are indications for non-invasive
ventilation (NIV)?
A. Acute exacerbation of COPD
B. Cardiogenic pulmonary edema
C. Respiratory failure with altered mental status
D. Hypoxemic respiratory failure
Correct Answer: A, B, D
Rationale: NIV is indicated for COPD exacerbations, pulmonary
edema, and some cases of hypoxemic respiratory failure.
Altered mental status is a contraindication.
,5. Which of the following statements about asthma are
correct?
A. It is characterized by reversible airway obstruction
B. Inhaled corticosteroids are first-line therapy for persistent
asthma
C. Peak flow measurement is useful for monitoring
D. Beta-blockers are first-line therapy
Correct Answer: A, B, C
Rationale: Asthma involves reversible obstruction; inhaled
corticosteroids are standard long-term therapy; peak flow
monitoring helps manage symptoms. Beta-blockers can worsen
asthma.
6. Which of the following blood gas values suggest respiratory
acidosis?
A. pH < 7.35
B. PaCO₂ > 45 mmHg
C. HCO₃⁻ > 28 mEq/L
D. PaO₂ < 60 mmHg
Correct Answer: A, B
Rationale: Respiratory acidosis is indicated by low pH and
elevated PaCO₂. HCO₃⁻ may be elevated if compensated. PaO₂ is
unrelated.
, 7. Indications for chest physiotherapy include:
A. Cystic fibrosis
B. Pneumonia with excessive secretions
C. Acute asthma exacerbation
D. Atelectasis prevention
Correct Answer: A, B, D
Rationale: Chest physiotherapy helps mobilize secretions in CF,
pneumonia, and prevents atelectasis. It is not indicated in acute
asthma exacerbation.
8. Common complications of endotracheal intubation include:
A. Hypoxia
B. Esophageal intubation
C. Laryngospasm
D. Pulmonary embolism
Correct Answer: A, B, C
Rationale: Hypoxia, esophageal intubation, and laryngospasm
are immediate risks. Pulmonary embolism is not a direct
complication.
9. Indications for mechanical ventilation include:
A. PaO₂ < 60 mmHg despite oxygen therapy
B. PaCO₂ > 50 mmHg with pH < 7.25
C. Severe respiratory distress
D. Stable COPD
