RPFT Exam Questions

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Effective June 2015, the Certification Examination for Entry-Level Pulmonary Function Technologists (CPFT) and the Registry Examination for Advanced Pulmonary Function Technologists (RPFT) will transition to a one‐examination, two‐cut scores examination. If a candidate achieves the lower cut score, they will earn the CPFT credential. If a candidate achieves the higher cut score, they will earn the RPFT credential. The new Pulmonary Function Technologist (PFT) Examination is designed to objectively measure essential tasks required of a pulmonary function technologist. The PFT Examination will contain 115 multiple‐choice items (100 scored, 15 pretest) distributed among the three major content areas: instrumentation/equipment, procedures, and data management. Candidates will be given two hours to complete the PFT Examination.

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Question No 1:

Which of the following is the most reliable method to estimate the effectiveness of standard procedures to minimize the risk of cross-contamination during spirometry testing in a pulmonary function laboratory? A. Count the number of disposable mouthpieces used for 1 week. B. Observe the handwashing behavior of each technologist. C. Ask patients tested about laboratory hygiene. D. Ask technologists if they wash their hands before each test

Answer: B




Question No 2:

While performing duplicate blood gas analyses, a pulmonary function technologist notes that the second instrument gives consistently higher values forPaCO2and 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 PO2and PCO2electrodemembranes have protein build-up D. The sample chamber has a bacterial contaminate

Answer: A




Question No 3:

Which of the following problems may be identified by using an isothermal lung analog to perform quality control on a body plethysmograph? 1. 1.Improperly calibrated mouth pressure transducer 2. 2.Obstructed or perforated pneumotachometer 3. 3.Increase in mechanical resistance 4. 4.Malfunctioning box pressure transducer

A. 3 and 4 only B. 2 and 3 only C. 1 and 4 only D. 1 and 2 only

Answer: C




Question No 4:

An isothermal lung analog has the following specifications: 5-L glass bottle 2000 g of steel wool Density of steel wool 5 g/cm3 Volume of connectors and bulb 100 mi-Repeated FRC measurements in the plethysmograph result in a volume of 5.5 L. Which of the following should a pulmonary function technologist do? A. Remove 500 g ofsteel wool from the lung analog B. Take the plethysmograph out of service C. Recalculate the BTPS correction D. Begin a biologic control program

Answer: D




A pulmonary function technologist is reviewing an asthma action plan. The patient takes a low-dose inhaled corticosteroid and a long-acting beta2-agonist twice daily. The patient's personal best peak flow is 600 L/min. Which of the following instructions should be given to the patient when the peak flow drops to 500 L/min? A. Add montelukast (Singular). B. Continue the current regimen. C. Go to the emergency department. D. Double the steroid dose.

Answer: A

Question No 5:




Question No 6:


A treadmill belt stops for a fraction of a second each time the patient takes a step. A pulmonary function technologist should

A. Instruct the patient to use the hand rails. B. Tighten the belt. C. Increase the speed of the belt. D. Decrease the treadmill grade.

Answer: B



Prior to an exercise study, a pulmonary function technologist finds that the patient's RER is 1.13. Which of the following best explains this finding? A. Carbohydrate metabolism B. Protein metabolism C. Hypoventilation D. Hyperventilation

Answer: D

Question No 7:




A 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? A. MVV B. DLcoC. SGawD. SpO2

Answer: A

Question No 8:




A pulmonary function technologist is performing an exercise (stress) test on a patient with severe COPD. As the test progresses, the patient shows signs of increasing dyspnea. Measurements of inspiratory capacity decreased from 2.0 L to 1.5 L. Which of the following most likely occurred? A. Dynamic hyperinflation B. Disconnected gas sampling line C. Drift in the flow transducer D. Acute decrease in FRC

Answer: D

Question No 9:




During exercise, a subject's oxygen consumption increases out of proportion to his cardiac output. This is due to an increase in A. Anaerobic metabolism B. Alveolar ventilation C. Coronary blood flow D. Oxygen extraction.

Answer: C

Question No 10:




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