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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. The following results are obtained from an adult male:
The corrected DLcovalue

A) is higher.
B) is lower.
C) cannot be calculated.
D) is unchanged.

2. 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) Add a trial of bupropion (Zyban).
C) Switch to a nicotine patch.
D) Increase the dosage of the nicotine replacement.

3. To check the reliability of a pulse oximeter reading, a pulmonary function technologist should

A) Measure the hematocrit
B) Have the patient hyperventilate
C) Perform hemoximetry
D) Calculate the SaO2from pH and PaO2

4. Which of the following is a common reason for an unstable zero reading from an infrared analyzer?

A) Exhausted DRIERITE
B) Excess room humidity
C) Debris in the sampling system
D) Inaccurate calibration gases

5. A helium dilution test has just been performed on a patient. The following results are obtained:
FRC 5.0 L
VC 4.0 L
ERV 1.5 L
TLC was calculated to be 6.0 L by plethysmography. From this information, a pulmonary function technologist should conclude that the patient

A) Did not remain in the helium dilution breathing circuit long enough for equilibration.
B) Was turned into the helium dilution circuit at a lung volume considerably above FRC.
C) Did not perform the slow vital capacity properly, resulting in too low an FRC by helium dilution.
D) Had inadequate intrapulmonary mixing of inspired gas, resulting in an erroneous FRC.

Solutions: