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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. When using a variable pressure plethysmograph, a leak in the door seal that develops subsequent to calibration will cause underestimation of

A) vital capacity
B) VTG
C) Raw
D) Alveolar pressure

2. A pulmonary function technologist is reviewing an asthma action plan. The patient takes a low-dose inhaled corticosteroid and a long-acting beta2-agonist twice daily. The patient's personal best peak flow is 600 L/min.
Which of the following instructions should be given to the patient when the peak flow drops to 500 L/min?

A) Continue the current regimen.
B) Go to the emergency department.
C) Double the steroid dose.
D) Add montelukast (Singular).

3. A smoking cessation program using a nicotine patch is started for all smokers in a factory. Results revealed that smokers who reported they had quit had exhaled carbon monoxide levels less than 6 ppm. A pulmonary function technologist should conclude that

A) The smokers were not being truthful about smoking cessation.
B) A different method of smoking cessation should be offered to improve outcomes.
C) The smokers had refrained from smoking for the previous 6 hours.
D) The program was effective in accomplishing smoking cessation.

4. Which of the following may cause a reduction in end-tidal CO2?

A) Exercise below the anaerobic threshold
B) Increased VD/VTratio
C) Anxiety-induced hyperventilation
D) Eating a high-protein diet

5. An isothermal lung analog has the following specifications:
5-L glass bottle
2000 g of steel wool
Density of steel wool 5 g/cm3
Volume of connectors and bulb 100 mi-Repeated FRC measurements in the plethysmograph result in a volume of 5.5 L.
Which of the following should a pulmonary function technologist do?

A) Begin a biologic control program
B) Take the plethysmograph out of service
C) Recalculate the BTPS correction
D) Remove 500 g of steel wool from the lung analog

Solutions: