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NBRC Registry Examination for Advanced Pulmonary Function Technologists RPFT Question # 11 Topic 2 Discussion

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NBRC Registry Examination for Advanced Pulmonary Function Technologists RPFT Question # 11 Topic 2 Discussion

RPFT Exam Topic 2 Question 11 Discussion:
Question #: 11
Topic #: 2

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 occurred between running the two samples

C.

The PO2and PCO2electrode membranes have protein build-up

D.

The sample chamber has a bacterial contaminate

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Actual exam question for NBRC RPFT exam by Echo5214 at Aug 3, 2025, 12:00:00 AM

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