NBRC RPFT : Registry Examination for Advanced Pulmonary Function Technologists

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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

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

2. Which of the following tracings represents an airways resistance maneuver performed with a slow breathing frequency?

A) Option B
B) Option C
C) Option D
D) Option A

3. A pulmonary function technologist is performing an exercise (stress) test on a patient with severe COPD. As the test progresses, the patient shows signs of increasing dyspnea. Measurements of inspiratory capacity decreased from 2.0 L to 1.5 L. Which of the following most likely occurred?

A) acute decrease in FRC
B) dynamic hyperinflation
C) disconnected gas sampling line
D) drift in the flow transducer

4. A physician orders smoking cessation counseling for a 60-year-old male with a new diagnosis of CHF and COPD. The patient has failed several attempts to quit smoking using nicotine gum. Which of the following should a pulmonary function technologist recommend?

A) Use alternative medicine such as acupuncture.
B) Increase the dosage of the nicotine replacement.
C) Add a trial of bupropion (Zyban).
D) Switch to a nicotine patch.

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

Solutions: