ALASKA RESPIRATORY THERAPY TEST EXAM 100 QUESTIONS WITH REVISED ANSWERS AND DETAILED RATIONALES LATEST UPDATE

ALASKA RESPIRATORY THERAPY TEST EXAM
100 QUESTIONS WITH REVISED ANSWERS AND
DETAILED RATIONALES LATEST 2025-2026
UPDATE


1. Normal adult respiratory rate is:

A. 8–10/min
B. 12–20/min
C. 22–30/min
D. 30–40/min
Answer: B
Rationale: Normal adult RR is 12–20 breaths/min.



2. Best oxygen delivery device for precise FiO₂:

A. Nasal cannula
B. Simple mask
C. Venturi mask
D. Non-rebreather
Answer: C
Rationale: Venturi mask provides fixed, accurate FiO₂.



3. Hypoxemia is defined as:

,A. Low CO₂
B. Low blood oxygen
C. High hemoglobin
D. High pH
Answer: B
Rationale: Hypoxemia = low arterial oxygen (PaO₂).



4. Normal PaO₂ range:

A. 40–60 mmHg
B. 60–80 mmHg
C. 80–100 mmHg
D. 100–120 mmHg
Answer: C
Rationale: Normal PaO₂ is 80–100 mmHg.



5. First-line therapy for asthma exacerbation:

A. Antibiotics
B. Short-acting bronchodilator
C. Diuretics
D. Antihistamines
Answer: B
Rationale: SABAs (e.g., albuterol) are first-line.



6. Which drug is a bronchodilator?

A. Albuterol
B. Furosemide
C. Prednisone
D. Warfarin

, Answer: A
Rationale: Albuterol is a β₂-agonist bronchodilator.



7. Normal pH range:

A. 7.10–7.25
B. 7.25–7.35
C. 7.35–7.45
D. 7.45–7.55
Answer: C
Rationale: Normal arterial pH = 7.35–7.45.



8. ABG: pH 7.30, PaCO₂ 55 → condition?

A. Metabolic acidosis
B. Respiratory acidosis
C. Respiratory alkalosis
D. Metabolic alkalosis
Answer: B
Rationale: Low pH + high CO₂ = respiratory acidosis.



9. Primary cause of COPD:

A. Infection
B. Smoking
C. Genetics only
D. Asthma
Answer: B
Rationale: Smoking is the main risk factor.