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NBRC Registry Examination for Advanced Pulmonary Function Technologists Sample Questions:

1. A patient who smokes three packs of cigarettes a day has a DLcoOf 45% of predicted. The patient is referred for exercise (stress) testing. Which of the following should a pulmonary function technologist select to evaluate oxygenation?

A) Arterial blood gas analysis
B) Pulse oximetry
C) End-tidal oxygen tension
D) Transcutaneous oxygen electrode

2. A pulmonary function laboratory routinely tests five subjects as biologic controls. Acceptable instrument performance over time is indicated when measurements

A) Are within the 95% confidence interval predicted for an individual being tested.
B) For an individual are within 2 standard deviations of the mean of those for the group.
C) Of the group as a whole agree with those predicted by linear regression for changes in age.
D) For each individual are within 2 standard deviations of the mean of previous measurements for each individual.

3. A 35-year-old healthy male is performing a maximal stress test as part of an annual physical. The following data are observed:

The patient denies any symptoms. Which of the following should a pulmonary function technologist do first?

A) Move the pulse oximeter sensor to another site
B) Obtain an arterial blood gas while continuing exercise
C) Terminate the test and stabilize the patient.
D) Administer oxygen at 3-4 L/min by nasal cannula

4.
Which of the above patterns illustrates the effect of increasing temperature in the plethysmograph during airways resistance measurement?

A) 3
B) 4
C) 1
D) 2

5. The following biologic control measurements are obtained:
Which of the following patterns appears in this plot?

A) Drift
B) Noise
C) In control
D) Shift

Solutions: