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15/09/2019 6:48 am
Two results were collected years apart with unknown method changes. What should be clarified?
| Field | Scope |
|---|---|
| Subject | Comparing laboratory methods across years |
| Exercise | Discuss the stated question; distinguish sources, interpretations and unresolved points. |
15/09/2019 8:16 am
Ask whether assay, instrument, units or reference intervals changed and retain both original reports. Do not infer a physiological trend before assessing measurement comparability with a clinician.
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