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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

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

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

2. Which of the following spirometry results is most characteristic of a restrictive lung disease?

A) Decreased FEV1/FVC ratio and normal FVC
B) Normal FEV1/FVC ratio and decreased FVC
C) Increased FEV1 with normal total lung capacity
D) Increased residual volume and increased FEV1/FVC ratio

3. A treadmill belt stops for a fraction of a second each time the patient takes a step. A pulmonary function technologist should

A) Instruct the patient to use the hand rails.
B) Tighten the belt.
C) Decrease the treadmill grade.
D) Increase the speed of the belt.

4. A smoking cessation program using a nicotine patch is started for all smokers in a factory. Results revealed that smokers who reported they had quit had exhaled carbon monoxide levels less than 6 ppm. A pulmonary function technologist should conclude that

A) The smokers had refrained from smoking for the previous 6 hours.
B) The program was effective in accomplishing smoking cessation.
C) The smokers were not being truthful about smoking cessation.
D) A different method of smoking cessation should be offered to improve outcomes.

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

Solutions: