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NBRC RPFT Exam Syllabus Topics:

NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. 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) Reduce the concentration of methacholine on the next trial.
B) Instruct the patient to blow out longer and repeat the effort.
C) Instruct the patient to blow out harder and repeat the effort.
D) Stop the test and immediately administer a bronchodilaior.

2. Which of the following may cause a reduction in end-tidal CO2?

A) Exercise below the anaerobic threshold
B) Eating a high-protein diet
C) Increased VD/VTratio
D) Anxiety-induced hyperventilation

3. During calibration of a spirometer, injection of air with a 3-liter syringe results in the following:
Using another 3-liter syringe, air is again injected with the following results:
A pulmonary function technologist should conclude that the

A) Calibration should be repeated
B) Spirometer is alinear
C) Spirometer has intermittent failure
D) First syringe is not set properly

4. A patient's bronchial provocation test was interpreted as positive for hyperreactive airways. Considering changes from a pre-challenge baseline, all of the following are consistent with this interpretation EXCEPT a

A) 25% decrease in Raw.
B) 25% decrease in FEF25-75%.
C) 25% decrease in FEFmax.
D) 25% increase in FRC.

5. While performing a quality control test on an open circuit nitrogen system, the volume of a 3-liter syringe is measured as 3.9 L. Which of the following is the most probable explanation?

A) There was an air leak in the system.
B) The nitrogen analyzer gain was set too low.
C) The volume was not corrected from ATPS to BTPS.
D) The initial O2concentration in the syringe was greater than 0.21.

Solutions: