Question 1
A spirometer is being calibrated using a 3-liter calibration syringe. The spirometer reads 2.88 liters on three consecutive trials. What is the most appropriate action?
Correct Answer:
Adjust the spirometer calibration factor before testing
Question 2
Which of the following is the primary purpose of a body plethysmograph in pulmonary function testing?
Correct Answer:
Measuring thoracic gas volume and airway resistance
Question 3
During a nitrogen washout test for FRC measurement, which of the following would most likely cause an erroneously high result?
Correct Answer:
A leak in the breathing circuit
Question 4
Which gas is used as the tracer in the single-breath diffusion capacity (DLCO) test?
Correct Answer:
Carbon monoxide
Question 5
A PFT lab is performing quality control on a blood gas analyzer. The control sample results fall outside the ±2 standard deviation (SD) range. What should the technologist do FIRST?
Correct Answer:
Repeat the control sample to confirm the out-of-range result
Question 1
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About this Exam

Prepare with the RPFT Practice Questions - NBRC Registered Pulmonary Function Technologist Exam practice quiz. This question bank includes 100 questions covering patient, fev1, results, predicted, and spirometry. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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RPFT Practice Questions - NBRC Registered Pulmonary Function Technologist Exam

This practice set contains 100 questions from the matching question bank and focuses on patient, fev1, results, predicted, and spirometry. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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