Registry Examination for Advanced Pulmonary Function Technologists RPFT Exam Questions

When using a variable pressure plethysmograph, a leak in the door seal that develops subsequent to calibration will cause underestimation of

A pulmonary function technologist is asked to select gas concentrations to simulate pediatric patients' exhaled concentrations during a D Lco simu - lation. Which of the following F E CO concentrations should the technologist select?

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 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

The following values are reported at maximum effort for a 50-year-old, 70-kg (154-lb) male with significant coronary artery disease during ergometer stress testing. Which of the following is most likely an error?