Rpft Certifications Book

By Author: mcleod.k
Total Articles: 155
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Question: 1

The following results are obtained:

The RV/TLC ratio from these data is consistent with which of the following?

A. Obstructive defect
B. Normal lung volumes
C. Combined obstructive/restrictive defect
D. Restrictive defect

Answer: A

Question: 2

During an exercise study, a pulmonary function technologist notices the systolic blood pressure increased to 270 mm Hg using an automated cuff. Which of the following should the technologist do?

A. Terminate the test and administer oxygen by nasal cannula.
B. Continue the test and recheck blood pressure using manual cuff method.
C. Terminate the test at this time and recheck blood pressure.
D. Continue the test if within 5 minutes of completion.

Answer: A

Question: 3

The following values are reported at maximum effort for a 50-year-old, 70-kg (154-lb) male with significant coronary artery disease during ergometer stress testing. Which of the following is most likely an error?

...
... A. workload 200 watts
B. VE65L/min
C. HR145/min
D. RER1.2

Answer: A

Question: 4

During the calibration and set-up of the metabolic stress testing system for a patient breathing supplemental oxygen, which of the following gas concentrations will ensure accurate calibration of the system?


A. Option A
B. Option B
C. Option C
D. Option D

Answer: D

Question: 5

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 dyspne
a. 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: 6

A pulmonary function technologist can calculate which of the following if values for pH, PaO2, SaO2, SvO2 PvO2, VO2, and Hb are obtained?

A. Cardiac output
B. RER
C. VD/VT
D. Stroke volume

Answer: A

Question: 7

A 9-year-old girl had an FVC of 2.35 L1 year ago. She was 122 cm (4 ft) tall and weighed 29.5 kg (65 lb). Her current height is 127 cm (4 ft 2 in), and her weight is 34 kg (75 lb). The current FVC measurement is 2.20 L. The quality of both tests met ATS/ERS goals. A pulmonary function technologist should conclude the change is

A. Not significant since it is less than a 15% decrease.
B. Not significant since it is within normal test variability.
C. Significant since a decline is not expected.
D. Significant since her weight has changed.

Answer: C

Question: 8

Which of the following may cause a reduction in end-tidal CO2?

A. Increased VD/VT ratio
B. Anxiety-induced hyperventilation
C. Exercise below the anaerobic threshold
D. Eating a high-protein diet

Answer: B

Question: 9

During a cardiopulmonary stress test using breath-by-breath gas analysis, a pulmonary function technologist notices that the VO2 suddenly decreases. Which of the following may explain this change?
1. The patient has achieved anaerobic threshold.
2. The measurement of the expired gas volumes is inaccurate.
3. O2 analyzer "phase delay" has increased.
4. There is a leak in the tubing or mouthpiece.

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

Answer: A

Question: 10

A comparison of two techniques for measuring Rawis shown below:

Which of the following should a pulmonary function technologist conclude?

A. Subject 1 panted too forcefully.
B. The system was calibrated for quiet breathing.
C. Subjects 1 and 2 both have reactive airways.
D. Results are consistent with the two methodologies.

Answer: D