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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. The following data are obtained after an exercise (stress) test for exercise-induced asthma:

Based on these data, the post-exercise FEVi represents a decrease of approximately

A) 20%
B) 13%
C) 67%
D) 17%

2. A patient will undergo bronchial provocation testing with methacholine chloride (Provocholine). Baseline spirometry reveals the FVC is 4.00 L and FEV1is 3.00 L. The provocative dose 20% (PD20) can be calculated when which of the following measurements occur?

A) The FVC falls below 3.20 L, or the FEV1falls below 2.40 L.
B) The FVC falls below 3.20 L and the FEV1falls below 2.40 L.
C) The FEV, falls below 2.40 L, regardless of change in FVC.
D) The ratio FEV1/FVC falls below 0.8.

3. After finishing the exercise portion of a test for exercise-induced bronchospasm, a patient complains of difficulty "catching her breath." A pulmonary function technologist should

A) Have the patient perform an FVC maneuver.
B) Instruct the patient to breathe normally.
C) Give the patient a bronchodilator.
D) Administer oxygen at 2 L/min.

4. Treadmill speed can be verified by

A) Dividing the height by the horizontal distance.
B) Dividing the cycles/min by the belt length.
C) Multiplying the belt length by the cycles/min.
D) Multiplying the cycles/min by the height.

5. A biologic control subject has a FRCplethof 4.0 ±0.3 L at panting frequencies between 60 and 70/min. During a QC run, the subject pants at55/min and a FRCplethof 3.90 L is recorded.
Which of the following is the most appropriate action to take?

A) Take the plethysmograph out of service pending corrective maintenance.
B) Repeat the test, coaching the subject to pant more slowly.
C) Continue using the system because it is within control limits.
D) Recalibrate the mouth pressure transducer and repeat the test.

Solutions: