RPFT Practice Questions - NBRC Registered Pulmonary Function Technologist Exam

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A PFT lab is performing quality control on a blood gas analyzer. The control sample results fall outside the ±2 standard deviation (SD) range. What should the technologist do FIRST?

Run patient samples and flag the results as potentially inaccurate Repeat the control sample to confirm the out-of-range result Replace all electrodes in the blood gas analyzer Notify the laboratory director and discontinue all testing

Correct Answer:

Repeat the control sample to confirm the out-of-range result

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