NBRC RPFT

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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. A pulmonary function technologist is performing a single-breath diffusion capacity (DLCO) test. Which of the following factors is most likely to cause a falsely elevated DLCO result?

A) Poor inspiratory effort
B) Severe anemia
C) Pulmonary hemorrhage
D) Alveolar fibrosis

2. A patient has just finished a 6-minute walk test during which she stopped and rested by leaning against a wall several times, while catching her breath. Which of the following should a pulmonary function technologist do?

A) Repeat the test with supplemental oxygen after the patient is fully rested.
B) Report that the patient was unable to complete a standard 6-minute walk test.
C) Subtract the time spent at rest and report the distance walked during the time spent walking.
D) Document the total distance the patient covered in 6 minutes.

3. The following blood gas report is questioned by the attending physician:

Which of the following values is INCONSISTENT?

A) PaCO2
B) pH
C) HCO3
D) BE

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

5. A pulmonary function technologist is performing an exercise study on a patient with sarcoidosis. Which of the following end-tidal CO2values should the technologist expect at rest, if the test is performed appropriately?

A) 0-1.5%
B) 2-3%
C) 7-10%
D) 4-5%

Solutions: