Registry Examination for Advanced Pulmonary Function Technologists: RPFT

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

A. Inhale to TV

B. Pant at 40 to 50 Hz

C. Pant at 90 to 100 Hz

D. Inhale to TLC

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 礚 with a 2.0 mL initial saline dose in the nebulizer. The technologist should

A. Open the vent before starting the bronchial challenge.

B. Add an exhalation filter and proceed with testing patients.

C. Clean and reevaluate this nebulizer.

D. Accept the results and begin using the device.

Results of two blood gas samples drawn from the same patient, 30 minutes apart, are shown below:

Which of the following is the most likely explanation for these differences?

A. The patient's minute ventilation has increased.

B. The patient has developed a pneumothorax.

C. The 10:30 blood sample has been contaminated with air.

D. The 10:30 blood sample contains an excess of heparin solution.