After a reagent lot change, both levels of chemistry control shift above their established means and exceed th…

Question

After a reagent lot change, both levels of chemistry control shift above their established means and exceed the laboratory's acceptance limits. Patient specimens are queued but not yet reported. What should the technologist do first?

Accepted Answer

보기 2: Hold patient results and investigate the reagent, calibration, and control process before resuming testing

QC procedures are intended to monitor accuracy and precision throughout testing. When controls are unacceptable, patient reporting must be held while the cause is investigated and acceptable performance is re-established.

Answer

보기 1: Report patient results because both control levels shifted in the same direction

Answer

보기 3: Widen the control limits to include the new values

Answer

보기 4: Delete the control results and rerun only patient specimens

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After a reagent lot change, both levels of chemistry control shift above their established means and exceed the laboratory's acceptance limits. Patient specimens are queued but not yet reported. What should the technologist do first?

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