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Free RPFT – Registered Pulmonary Function Technologist Practice Test Question

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Showing 1–3 of 10 questions

Question 1

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

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    For each individual are within 2 standard deviations of the mean of previous measurements for each individual.

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    For an individual are within 2 standard deviations of the mean of those for the group.

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    Of the group as a whole agree with those predicted by linear regression for changes in age.

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    Are within the 95% confidence interval predicted for an individual being tested.
Question 2

The following biologic control measurements are obtained:

Which of the following patterns appears in this plot?

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    Shift
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    In control
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    Drift
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    Noise
Question 3

Biological control data are obtained for lung volumes by plethysmography. The following results are obtained:

A pulmonary function technologist should repeat the test instructing the individual to

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    Inhale to TV
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    Pant at 40 to 50 Hz
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    Pant at 90 to 100 Hz
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    Inhale to TLC