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[2025] RPFT PDF Questions - Perfect Prospect To Go With PassCollection Practice Exam
NEW QUESTION # 46
A patient who smokes three packs of cigarettes a day has a DLco Of 45% of predicted. The patient is referred for exercise (stress) testing. Which of the following should a pulmonary function technologist select to evaluate oxygenation?
- A. Arterial blood gas analysis
- B. End-tidal oxygen tension
- C. Pulse oximetry
- D. Transcutaneous oxygen electrode
Answer: A
NEW QUESTION # 47
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. The volume was not corrected from ATPS to BTPS.
- B. There was an air leak in the system.
- C. The initial O2 concentration in the syringe was greater than 0.21.
- D. The nitrogen analyzer gain was set too low.
Answer: B
NEW QUESTION # 48
A patient has just finished a 6-minute walk test during which she stopped and rested by leaning against a wall several times, while catching her breath. Which of the following should a pulmonary function technologist do?
- A. Report that the patient was unable to complete a standard 6-minute walk test.
- B. Repeat the test with supplemental oxygen after the patient is fully rested.
- C. Document the total distance the patient covered in 6 minutes.
- D. Subtract the time spent at rest and report the distance walked during the time spent walking.
Answer: D
NEW QUESTION # 49
The desiccant column on an infrared CO2analyzer is pink. The readings obtained from this analyzer would result in
- A. No effect on CO2
- B. Adecreased CO2
- C. An unstable reading
- D. An increased CO2
Answer: D
NEW QUESTION # 50
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. Variable large airways obstruction
- B. Restrictive disorder
- C. Fixed large airways obstruction.
- D. Small airways obstruction
Answer: B
NEW QUESTION # 51
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. Normal response
- B. Condensation of moisture in the peak flowmeter
- C. Increasing airways resistance in the subject
- D. Improper calibration of the peak flowmeter
Answer: C
NEW QUESTION # 52
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. Variable large airways obstruction
- B. Restrictive disorder
- C. Fixed large airways obstruction.
- D. Small airways obstruction
Answer: B
NEW QUESTION # 53
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. The volume was not corrected from ATPS to BTPS.
- B. There was an air leak in the system.
- C. The initialO2concentration in the syringe was greater than 0.21.
- D. The nitrogen analyzer gain was set too low.
Answer: B
NEW QUESTION # 54
CORRECT TEXT
A pulmonary function technologist is asked to select gas concentrations to simulate pediatric patients' exhaled concentrations during a DLcosimulation. Which of the following FECO concentrations should the technologist select?
- A. 0.100
- B. 0.200
- C. 0.300
- D. 0.400
Answer: C
NEW QUESTION # 55
The following results are obtained from an adult male:
The corrected DLcovalue
- A. is unchanged.
- B. is lower.
- C. is higher.
- D. cannot be calculated.
Answer: A
NEW QUESTION # 56
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. acute decrease in FRC
- D. drift in the flow transducer
Answer: C
NEW QUESTION # 57
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. An excessive delay occurred between running the two samples
- B. The PO2 and PCO2 electrode membranes have protein build-up
- C. The sample chamber temperature is greater than 37° C
- D. The sample chamber has a bacterial contaminate
Answer: C
NEW QUESTION # 58
The following results are obtained:
The RV/TLC ratio from these data is consistent with which of the following?
- A. Normal lung volumes
- B. Obstructive defect
- C. Combined obstructive/restrictive defect
- D. Restrictive defect
Answer: B
NEW QUESTION # 59
When selecting gas tanks for a DLcosimulator, which of the following expired CO gas concentrations will produce the highest simulated DLco?
- A. 0.08
- B. 0.10
- C. 0.15
- D. 0.30
Answer: D
NEW QUESTION # 60
Biological control data are obtained for lung volumes by plethysmography. The following results are obtained:
A pulmonary function technologist should repeat the test instructing the individual to
- A. Inhale to TV
- B. Pant at 90 to 100 Hz
- C. Pant at 40 to 50 Hz
- D. Inhale to TLC
Answer: D
NEW QUESTION # 61
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Candidates who pass the NBRC RPFT exam will earn a certification that demonstrates their expertise in pulmonary function testing. Registry Examination for Advanced Pulmonary Function Technologists certification is recognized throughout the industry and is a requirement for many jobs in the field of respiratory care. Additionally, those who hold this certification are often able to command higher salaries and have greater job opportunities than those who do not.
NBRC RPFT Exam is administered by the National Board for Respiratory Care (NBRC). The NBRC is a non-profit organization that is responsible for credentialing respiratory therapists and other allied health professionals. The RPFT Exam is a computer-based test that consists of 200 multiple-choice questions. RPFT exam is split into two sections, with 100 questions in each section. Candidates have four hours to complete the exam.
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