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RPFT PDF DEMO:
QUESTION NO: 1
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
4.
Which of the above patterns illustrates the effect of increasing temperature in the plethysmograph during airways resistance measurement?
A. 4
B. 3
C. 2
D. 1
Answer: A
QUESTION NO: 2
When performing quality control in a body plethysmograph using a 5-L isothermal bottle, theVTGat shutter closure are as follows:
A pulmonary function technologist should
A. Service the mouth pressure transducer.
B. Recalibrate the box pressure transducer.
C. Check biological control before beginning testing.
D. Proceed with patient testing.
Answer: A
QUESTION NO: 3
While assessing a patient's expired gases at rest prior to exercise, a pulmonary function technologist calculates the RER as 0.6. Which of the following is the most likely explanation?
A. The patient has an elevated VDAVT
B. A gas analyzer is malfunctioning
C. The expired gas is contaminated with air
D. The patient is hyperventilating
Answer: B
QUESTION NO: 4
During a cardiopulmonary stress test using breath-by-breath gas analysis, a pulmonary function technologist notices that the VO2suddenly 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.O2analyzer "phase delay" has increased.
QUESTION NO: 5
To facilitate measurement of arterial oxygen content during an exercise (stress) test, a pulmonary function technologist should recommend
A. End-tidal monitoring
B. Pulse oximetry
C. An arterial puncture at anaerobic threshold
D. Radial artery catheterization
Answer: B
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Updated: May 27, 2022