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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. In which of the following patients would an end-tidal CO2most likely produce values that are inconsistent with PaCO2?

A) 12 year old with kyphoscoliosis
B) 20 year old who smokes cigarettes
C) 42 year old with moderate COPD
D) 50 year old with mild scleroderma

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

3. The following values are obtained using a 3-liter calibration syringe during volume calibration of a dry-rolling spirometer:
2.80 L
2.79 L
2.82 L
The performance of this spirometer is best described as

A) Accurate, but not precise.
B) Precise, but not accurate. .
C) Both accurate and precise.
D) Neither accurate nor precise.

4. A pulmonary function technologist is asked to select gas concentrations to simulate pediatric patients' exhaled concentrations during a DLcosimu-lation. Which of the following FECO concentrations should the technologist select?

A) 0.100
B) 0.400
C) 0.200
D) 0.300

5. Prior to an exercise study, a pulmonary function technologist finds that the patient's RER is 1.13. Which of the following best explains this finding?

A) Protein metabolism
B) Hyperventilation
C) Hypoventilation
D) Carbohydrate metabolism

Solutions: