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Reading the evidence
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17/09/2019 1:45 pm
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. |
17/09/2019 2:33 pm
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.
17/09/2019 3:46 pm
Clarification for “Comparing laboratory methods across years”: the point beginning “Ask whether assay, instrument, units or reference intervals changed…” belongs to the question as written. It should not be read as a report that a new check, purchase or experiment has been completed. Review focus: scope. Keep the stated question separate from any broader claim.
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