2023-10-04T04:30:37
such as:
(a) substances used for patient treatment (e.g. therapeutic
drugs, anticoagulants, etc.);
(b) substances ingested by the patient (e.g. over the counter
medications, alcohol, vitamins, foods, etc.);
(c) substances added during sample preparation (e.g.
preservatives, stabilizers);
(d) substances encountered in specific specimens types (e.g.
hemoglobin, lipids, bilirubin, proteins);
(e) analytes of similar structure (e.g. precursors, metabolites)
or medical conditions unrelated to the test condition including
specimens negative for the assay but positive for a condition that may mimic the test condition (e.g. for a hepatitis A assay: test specimens negative for hepatitis A virus, but positive for
hepatitis B virus).
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