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Updated: Jul 02, 2026
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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:
1. In which of the following patients would an end-tidal CO2most likely produce values that are inconsistent with PaCO2?
A) 20 year old who smokes cigarettes
B) 42 year old with moderate COPD
C) 12 year old with kyphoscoliosis
D) 50 year old with mild scleroderma
2. A pulmonary function technologist can calculate which of the following if values for pH, PaO2, SaO2, SvO2PvO2, VO2, and Hb are obtained?
A) RER
B) VD/VT
C) Cardiac output
D) Stroke volume
3. The desiccant column on an infrared CO2analyzer is pink. The readings obtained from this analyzer would result in
A) An increased CO2
B) An unstable reading
C) No effect on CO2
D) A decreased CO2
4. A patient has normal pulmonary and cardiac function. Which of the following is most likely when the patient reaches the anaerobic threshold during incremental stress testing?
A) Increased VDA/VTratio
B) Decreased CO2production
C) Decreased VE
D) Increased RER
5. During a bronchial provocation study, a patient has the following spirometric values after a 0.25 mg/mL dose of methacholine:
Based on these results, a pulmonary function technologist should
A) Stop the test and immediately administer a bronchodilaior.
B) Instruct the patient to blow out harder and repeat the effort.
C) Instruct the patient to blow out longer and repeat the effort.
D) Reduce the concentration of methacholine on the next trial.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: C | Question # 3 Answer: A | Question # 4 Answer: A | Question # 5 Answer: C |
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