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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. 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) A decreased CO2
D) No effect on CO2

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

3. A patient who is about to begin pulmonary function testing is visibly upset and complains to a pulmonary function technologist that she felt a receptionist was rude to her. Which of the following should the technologist do?

A) Ignore the complaint because it is not going to affect the testing about to begin.
B) Accompany the patient back to the reception area and try to determine who was at fault.
C) Give the patient time to calm down and ask the laboratory manager to become involved.
D) Try to get the patient to calm down by telling her that the receptionist is probably just having a bad day.

4. To facilitate measurement of arterial oxygen content during an exercise (stress) test, a pulmonary function technologist should recommend

A) End-tidal monitoring
B) An arterial puncture at anaerobic threshold
C) Pulse oximetry
D) Radial artery catheterization

5. A 9-year-old girl had an FVC of 2.35 L1 year ago. She was 122 cm (4 ft) tall and weighed 29.5 kg (65 lb).
Her current height is 127 cm (4 ft 2 in), and her weight is 34 kg (75 lb). The current FVC measurement is 2.20
L. The quality of both tests met ATS/ERS goals. A pulmonary function technologist should conclude the change is

A) Not significant since it is less than a 15% decrease.
B) Significant since her weight has changed.
C) Not significant since it is within normal test variability.
D) Significant since a decline is not expected.

Solutions: