After a new reagent lot is introduced, both levels of chemis… | 마이메르시 MyMerci
Laboratory Operations · 검사실 운영
문제
After a new reagent lot is introduced, both levels of chemistry control remain on the same side of the mean for many consecutive runs. What does this pattern most strongly suggest?
1Purely random error affecting one result
2No analytical change because values remain within 3 SD
3A patient identification error
4A systematic shift requiring investigation of calibration, reagent lot, or method bias✓ 정답
해설
A sustained displacement of control results to one side of the established mean indicates systematic error or a shift, often associated with calibration or reagent changes.
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