QUESTION: 25

CORRECT TEXT
A pulmonary function technologist is reviewing results of a recent mechanical diffusion simulation using a 3-liter syringe. The test was conducted at a room temperature of 22° C.
The following BTPS results were reported:

Which of the following should the technologist do?

Proceed with testing.
Change the calibration gases.
Recalibrate the gas analyzer.
Recalibrate the pneumotachometer.

Answer(s): A

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QUESTION: 26

Which of the following is a valid reason for using biologic controls for DLCo?

Establishing precision of the procedure
Identifying the source of gas analyzer error
Assessing accuracy of the volume measuring device
Determining the lower limit of normal values

Answer(s): C

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QUESTION: 27

During a linearity check of a flow sensor in a plethysmograph with a 3-liter calibration syringe, a pulmonary function technologist observes the following:

Which of the following should the technologist do?

Perform an additional flow check at 10 L/sec.
Look for an obstruction in the flow sensor.
Record these results and begin testing.
Recalibrate andrepeat the linearity check.

Answer(s): B

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QUESTION: 28

A patient's bronchial provocation test was interpreted as positive for hyperreactive airways. Considering changes from a pre-challenge baseline, all of the following are consistent with this interpretation EXCEPT a

25% decrease in Raw.
25% decrease in FEFmax.
25% increase in FR
25% decrease in FEF25-75%.

Answer(s): C

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QUESTION: 28