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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. Which of the following thresholds for a clinically significant change in lung function from the beginning to the end of a methacholine challenge test is significant?

A) A decline of more than 20% in inspiratory capacity
B) A decline of more than 20% in FEV1
C) An increase of more than 20% in airway resistance
D) A decline of more than 30% in FEF25-75%

2. A patient has normal pulmonary and cardiac function. Which of the following is most likely when the patient reaches the anaerobic threshold during incremental stress testing?

A) Decreased CO2production
B) Decreased VE
C) Increased RER
D) Increased VDA/VTratio

3. A pulmonary function technologist is performing quality control on a nebulizer used in the 5-breath dosimeter bronchial challenge. The target output of the device is 0.09 mL, plus or minus 10%. After 10 actuations, the nebulizer output was 75 µL with a 2.0 mL initial saline dose in the nebulizer. The technologist should

A) Open the vent before starting the bronchial challenge.
B) Clean and reevaluate this nebulizer.
C) Accept the results and begin using the device.
D) Add an exhalation filter and proceed with testing patients.

4. 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 residual volume and increased FEV1/FVC ratio
D) Increased FEV1 with normal total lung capacity

5. Which of the following is correct regarding smoking cessation?

A) Withdrawal symptoms are mild and last less than 48 hours.
B) Pharmacologic therapy increases chances of success along with counseling.
C) Support systems are minimally effective in smoking cessation.
D) Smokers who quit suddenly and without help are most likely to be successful.

Solutions: