NBRC RPFT Exam Dumps PDF
Registry Examination for Advanced Pulmonary Function Technologists Exam
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Question 1
A pulmonary function laboratory routinely tests five subjects as biologic controls. Acceptable instrument performance over time is indicated when measurements
A. For each individual are within 2 standard deviations of the mean of previous
measurements for each individual.
B. For an individual are within 2 standard deviations of the mean of those for the group
C. Of the group as a whole agree with those predicted by linear regression for changes in
age
D. Are within the 95% confidence interval predicted for an individual being tested.
Answer: D
Question 2
Which of the following thresholds for a clinically significant change in lung function from the beginning to the end of a methacholine challenge test is significant?
A. An increase of more than 20% in airway resistance
B. Adecline of more than 30% in FEF25-75%
C. Adecline of more than 20% in FEV1
D. Adecline of more than 20% in inspiratory capacity
Answer: C
Question 3
A government agency requires that a pulmonary function technologist establish proceduresto minimize the loss of laboratory data. Which of the following should be included in theseprocedures?1. Continuous mirroring of hard drives2. Storage of duplicate test data offsite3. No Internet connections to the computer storing the database4. Contracting with a third-party security company
A. 2,3, and 4 only
B. 1,3, and 4 only
C. 1,2, and 4 only
D. 1,2, and 3 only
Answer: A
Question 4
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 initialO2concentration 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.
Answer: A
Question 5
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
Question 6
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. Small airways obstruction
B. Restrictive disorder
C. Variable large airways obstruction
D. Fixed large airways obstruction.
Answer: B
Question 7
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. 0.200
B. 0.300
C. 0.400
D. 0.100
Answer: B
Question 8
Prior to an exercise study, a pulmonary function technologist finds that the patient's RER is 1.13. Which of the following bestexplains this finding?
A. Carbohydrate metabolism
B. Protein metabolism
C. Hypoventilation
D. Hyperventilation
Answer: D
Question 9
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. 0.30
C. 0.10
D. 0.15
Answer: B
Question 10
The desiccant column on an infrared CO2analyzer is pink. The readings obtained from this analyzer would result in
A. Adecreased CO2
B. An increased CO2
C. An unstable reading
D. No effect on CO2
Answer: B