Test Prep Test Prep Certifications RPFT Questions & Answers

• Question 91:

  At the end of a progressive exercise study of a healthy adult male, RER would be approximately what value?

  A. 1.65

  B. 0.83

  C. 1.00

  D. 1.25

  Correct Answer: C

• Question 92:

  A patient has normal pulmonary and cardiac function. Which of the following is most likely when the patient reaches the anaerobic threshold during incremental stress testing?

  A. Increased RER

  B. Decreased CO2 production

  C. Increased VDA/VT ratio

  D. Decreased VE

  Correct Answer: C

• Question 93:

  A treadmill is set so that the belt rises 1 ft in a horizontal distance of 10 ft at 3 mph. The percent grade indicator should read

  A. 30.0%

  B. 1.0%

  C. 3.0%

  D. 10.0%

  Correct Answer: C

• Question 94:

  A 40-year-old woman with a recent onset of asthma is receiving education regarding her newly prescribed medications. Which of the following will most likely cause her to experience hoarseness?

  A. Anti-lgE immunizations

  B. Inhaled corticosteroid

  C. Short acting beta2-agonist

  D. Leukotriene antagonist

  Correct Answer: D

• Question 95:

  While performing duplicate blood gas analyses, a pulmonary function technologist notes that the second instrument gives consistently higher values for PaCO2 and PaO2. Which of the following is the most probable cause of higher readings from the second instrument?

  A. The sample chamber temperature is greater than 37?C

  B. An excessive delay occurred between running the two samples

  C. The PO2 and PCO2 electrode membranes have protein build-up

  D. The sample chamber has a bacterial contaminate

  Correct Answer: A

• Question 96:

  A pulmonary function technologist is performing an exercise study on a patient with sarcoidosis. Which of the following end-tidal CO2 values should the technologist expect at rest, if the test is performed appropriately?

  A. 7-10%

  B. 0-1.5%

  C. 4-5%

  D. 2-3%

  Correct Answer: C

• Question 97:

  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. Condensation of moisture in the peak flowmeter

  B. Normal response

  C. Improper calibration of the peak flowmeter

  D. Increasing airways resistance in the subject

  Correct Answer: D

• Question 98:

  A patient will undergo bronchial provocation testing with methacholine chloride (Provocholine). Baseline spirometry reveals the FVC is 4.00 L and FEV1 is 3.00 L. The provocative dose 20% (PD20) can be calculated when which of the following measurements occur?

  A. The FVC falls below 3.20 L, or the FEV1 falls below 2.40 L.

  B. The FEV, falls below 2.40 L, regardless of change in FVC.

  C. The FVC falls below 3.20 L and the FEV1 falls below 2.40 L.

  D. The ratio FEV1/FVC falls below 0.8.

  Correct Answer: B

• Question 99:

  During a linearity check of a flow sensor in a plethysmograph with a 3-liter calibration syringe, a pulmonary function technologist observes the following:

  

  Which of the following should the technologist do?

  A. Perform an additional flow check at 10 L/sec.

  B. Look for an obstruction in the flow sensor.

  C. Record these results and begin testing.

  D. Recalibrate and repeat the linearity check.

  Correct Answer: B

• Question 100:

  During an exercise study, the RER will equal the RQ only when the patient is at

  A. Steady state

  B. Peak exercise

  C. The anaerobic threshold

  D. Rest

  Correct Answer: A