Test Prep Test Prep Certifications RPFT Questions & Answers

• Question 71:

  The following results were obtained from a symptom-limited exercise (stress) test:

  

  Which of the following is true regarding these data?

  A. The patient is deconditioned.

  B. The patient has a cardiac limitation to exercise.

  C. The patient reached the anaerobic threshold.

  D. The patient has a pulmonary limitation to exercise.

  Correct Answer: B

• Question 72:

  The following blood gas report is questioned by the attending physician:

  

  Which of the following values is INCONSISTENT?

  A. BE

  B. pH

  C. PaCO2

  D. HCO3

  Correct Answer: A

• Question 73:

  Which of the following information reported from a recent methacholine challenge test best summarizes the patient's bronchial hyperresponsiveness?

  A. patient reported chest tightness and a cough

  B. diluent FEV1 = 92% predicted

  C. postbronchodilator recovery FEV1 = 106% baseline

  D. PC20 = 2.3 mg/mL

  Correct Answer: A

• Question 74:

  A polarographic oxygen analyzer used to measure expired gas in a metabolic system should always be calibrated with

  A. Gas concentrations higher and lower than the expected measurement

  B. Oxygen mixtures containing 4% and 8% carbon dioxide

  C. 100% oxygen and 100% nitrogen, fully saturated

  D. Air and fully saturated 100% oxygen.

  Correct Answer: A

• Question 75:

  A 12-year-old patient completed an evaluation for exercise-induced asthma in the pulmonary function laboratory. The patient completed six minutes of exercise on a treadmill with a heart rate of 145 to 150/ min. The following spirometry data were collected:

  

  A pulmonary function technologist should conclude that the exercise test is

  A. Inadequate workload with a positive response

  B. Adequate workload with a negative response

  C. Inadequate workload with a negative response

  D. Adequate workload with a positive response

  Correct Answer: D

• Question 76:

  While performing a quality control test on an open circuit nitrogen system, the volume of a 3-liter syringe is measured as 3.9 L. Which of the following is the most probable explanation?

  A. There was an air leak in the system.

  B. The initial O2 concentration in the syringe was greater than 0.21.

  C. The volume was not corrected from ATPS to BTPS.

  D. The nitrogen analyzer gain was set too low.

  Correct Answer: A

• Question 77:

  An arterial blood gas performed prior to exercise on a 45-year-old patient shows the following results:

  

  A pulmonary function technologist should conclude that the patient's

  A. Hemoglobin level is below normal.

  B. Values are within normal limits.

  C. Alveolar ventilation is above normal.

  D. Dead space ventilation is above normal.

  Correct Answer: A

• Question 78:

  In a patient with neuromuscular disease, which of the following is the best way to detect airway obstruction?

  A. SGaw

  B. MIP

  C. PEF

  D. MVV

  Correct Answer: D

• Question 79:

  While setting up an exercise laboratory in a city with an altitude of 8,600 ft (2,775 m), a pulmonary function technologist notices the fuel cell O2 analyzer is displaying 15.2%. Which of the following is the best explanation for this finding?

  A. This exercise system will not work at high altitude.

  B. The analyzer is responding to P1O2.

  C. F1O2 decreases with increasing altitude.

  D. The fuel cell needs to be changed.

  Correct Answer: B

• Question 80:

  A body plethysmograph box pressure transducer fails the electronic calibration check after multiple attempts. Which of the following should a pulmonary function technologist do?

  1.

  Perform a biologic control test

  2.

  Inspect the door seal.

  3.

  Re-zero the box pressure transducer.

  4.

  Perform a physical pressure calibration.

  A. 1, 2, and 4 only

  B. 1, 3, and 4 only

  C. 2, 3, and 4 only

  D. 1, 2, and 3 only

  Correct Answer: D