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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. The following data were obtained from a bronchial challenge test:

APC20of 2 mg/mL was obtained the next day in another laboratory. Which of the following is the most likely explanation for these data?

A) The two test results are within day-to-day variability.
B) The spirometer accuracy drifted during the test.
C) Incorrect doses of methacholine were administered.
D) The patient's effort was inconsistent.

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

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 35-year-old healthy male is performing a maximal stress test as part of an annual physical. The following data are observed:

The patient denies any symptoms. Which of the following should a pulmonary function technologist do first?

A) Terminate the test and stabilize the patient.
B) Move the pulse oximeter sensor to another site
C) Obtain an arterial blood gas while continuing exercise
D) Administer oxygen at 3-4 L/min by nasal cannula

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

Solutions: