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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. The following data are obtained for a 60-year-old male undergoing an exercise (stress) test on an ergometer:

A pulmonary function technologist should

A) Continue the test since this is a normal cardiopulmonary response.
B) Stop the test because this is an abnormal VD/VT response.
C) Stop the test because the blood pressure response is abnormal.
D) Stop the test because the heart rate is too high after 10 minutes.

2. The following arterial blood gas results are obtained during the final workload of a cardiopulmonary exercise test:

Which of the following best explains these results?

A) Blood gas results are normal for someone at end-exercise.
B) IV solution has contaminated the blood sample.
C) The test indicates a right-to-left shunt.
D) There is air contamination since the PaCO2is so low.

3. The following results are obtained:

The RV/TLC ratio from these data is consistent with which of the following?

A) Normal lung volumes
B) Restrictive defect
C) Combined obstructive/restrictive defect
D) Obstructive defect

4. Which of the following is the most reliable method to estimate the effectiveness of standard procedures to minimize the risk of cross-contamination during spirometry testing in a pulmonary function laboratory?

A) Ask patients tested about laboratory hygiene.
B) Ask technologists if they wash their hands before each test
C) Observe the handwashing behavior of each technologist.
D) Count the number of disposable mouthpieces used for 1 week.

5. Which of the following problems may be identified by using an isothermal lung analog to perform quality control on a body plethysmograph?
1. Improperly calibrated mouth pressure transducer
2. Obstructed or perforated pneumotachometer
3. Increase in mechanical resistance
4. Malfunctioning box pressure transducer

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

Solutions: