RPFT 試験問題を無料オンラインアクセス

Which of the following thresholds for a clinically significant change in lung function from the beginning to the end of a methacholine challenge test is significant?

• A.An increase of more than 20% in airway resistance
• B.A decline of more than 20% in FEV1
• C.A decline of more than 20% in inspiratory capacity
• D.A decline of more than 30% in FEF25-75%

Successive peak flow measurements made with a peak flowmeter on a subject previously diagnosed as having asthma yield the following results:

Which of the following is the best explanation for these?

• A.Increasing airways resistance in the subject
• B.Condensation of moisture in the peak flowmeter
• C.Improper calibration of the peak flowmeter
• D.Normal response

Treadmill speed can be verified by

• A.Multiplying the belt length by the cycles/min.
• B.Dividing the height by the horizontal distance.
• C.Dividing the cycles/min by the belt length.
• D.Multiplying the cycles/min by the height.

A pulmonary function technologist is performing quality control on a nebulizer used in the 5-breath dosimeter bronchial challenge. The target output of the device is 0.09 mL, plus or minus 10%. After 10 actuations, the nebulizer output was 75 µL with a 2.0 mL initial saline dose in the nebulizer. The technologist should

• A.Add an exhalation filter and proceed with testing patients.
• B.Clean and reevaluate this nebulizer.
• C.Accept the results and begin using the device.
• D.Open the vent before starting the bronchial challenge.

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

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