Pulmonary function tests performed on a patient with tracheal stenosis may demonstrate increased
A. SVC.Which of the following tracings represents an airways resistance maneuver performed with a slow breathing frequency?

At maximum exercise, a 24-year-old patient's heart rate is 150/min with a VO2 of 750 mUmin. The calculated 02 pulse is most consistent with which of the following?
A. cystic fibrosisA patient who is about to begin pulmonary function testing is visibly upset and complains to a pulmonary function technologist that she felt a receptionist was rude to her. Which of the following should the technologist do?
A. Try to get the patient to calm down by telling her that the receptionist is probably just having a bad day.When performing exercise testing on a biologic control, the measurements obtained should be compared with
A. The patient population that will be tested.The following data are obtained for a 60-year-old male undergoing an exercise (stress) test on an ergometer:

A pulmonary function technologist should
A. Stop the test because the blood pressure response is abnormal.A patient is performing a flow-volume loop. A pulmonary function technologist observes equal decreases in expiratory and inspiratory flows resulting in plateaus. Patient effort is satisfactory, and he follows instructions well. The technologist should expect the patient to have a
A. Small airways obstructionA 35-year-old healthy male is performing a maximal stress test as part of an annual physical. The following data are observed:

The patient denies any symptoms. Which of the following should a pulmonary function technologist do first?
A. Obtain an arterial blood gas while continuing exercise
Which of the above patterns illustrates the effect of increasing temperature in the plethysmograph during airways resistance measurement?
A. 4A 6-year-old child has a history of repeated episodes of wheezing and shortness of breath. A pulmonary function technologist has difficulty obtaining repeatable spirometry results. Which of the following tests should be performed next?
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