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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. A body plethysmograph box pressure transducer fails the electronic calibration check after multiple attempts. Which of the following should a pulmonary function technologist do?
1.Perform a biologic control test
2.Inspect the door seal.
3.Re-zero the box pressure transducer.
4.Perform a physical pressure calibration.

A) 1,2, and 4 only
B) 2,3, and 4 only
C) 1,2, and 3 only
D) 1,3, and 4 only

2. To assure linearity of an oxygen analyzer, calibrate with

A) 100% 02
B) Air
C) Two test gases within the operating range of the instrument
D) Three test gases within the operating range of the instrument

3. A patient who smokes three packs of cigarettes a day has a DLcoOf 45% of predicted. The patient is referred for exercise (stress) testing. Which of the following should a pulmonary function technologist select to evaluate oxygenation?

A) Pulse oximetry
B) Transcutaneous oxygen electrode
C) Arterial blood gas analysis
D) End-tidal oxygen tension

4. During a cardiopulmonary stress test using breath-by-breath gas analysis, a pulmonary function technologist notices that the VO2suddenly decreases. Which of the following may explain this change?
1.The patient has achieved anaerobic threshold.
2.The measurement of the expired gas volumes is inaccurate.
3.O2analyzer "phase delay" has increased.
4. There is a leak in the tubing or mouthpiece.

A) 1,2, and 4 only
B) 2,3, and 4 only
C) 1,2, and 3 only
D) 1,3, and 4 only

5. Pulmonary function tests performed on a patient with tracheal stenosis may demonstrate increased

A) Raw.
B) FIF50.
C) Static compliance.
D) SVC.

Solutions: