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RPFT PDF DEMO:
QUESTION NO: 1
While performing duplicate blood gas analyses, a pulmonary function technologist notes that the second instrument gives consistently higher values forPaCO2and PaO2. Which of the following is the most probable cause of higher readings from the second instrument?
A. The sample chamber temperature is greater than 37 C
B. An excessive delay occurredbetween running the two samples
C. The PO2and PCO2electrodemembranes have protein build-up
D. The sample chamber has a bacterial contaminate
Answer: A
QUESTION NO: 2
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 NO: 3
A smoking cessation program using a nicotine patch is started for all smokers in a factory.
Results revealed that smokers who reported they had quit had exhaled carbon monoxide levels less than 6 ppm. A pulmonary function technologist should conclude that
A. The program was effective in accomplishing smoking cessation.
B. The smokers had refrained from smoking for the previous 6 hours.
C. The smokers were not being truthful about smoking cessation.
D. Adifferent method of smoking cessation should be offered to improve outcomes.
Answer: A
QUESTION NO: 4
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
QUESTION NO: 5
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
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Updated: May 27, 2022