Biomarkers · Chemical
We have not added a physiological summary for this biomarker yet. Compare the commercial laboratory assays and population reference ranges below.
Check orderable catalog codes, specimen types, fasting requirements, and demographic reference ranges across laboratories.
Laboratory assay overview
Methotrexate is an antimetabolite that combines with dihydrofolate reductase and interferes with the synthesis of tetrahydrofolic acid necessary for purines, DNA synthesis. The half-life in plasma is only several hours, while the methotrexate polyglutamates persist in cells for weeks or months.
Labcorp test directory, test code 504104
We compile every detail above directly from named laboratory directories and published clinical studies. Laboratories calculate standard reference intervals from the statistical distribution of tested populations for a specific assay method and demographic group, rather than setting universal optimal targets.
Always review your personal lab results with a licensed clinician, or track your lab history and health goals in Aumnivida.
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