Initial drug screening typically uses immunoassay methods, which are sensitive but can give false-positive results due to cross-reactivity. Confirmation testing uses chromatography and mass spectrometry to definitively identify and quantify the specific substance present.
This test is used following a positive amphetamine screen to confirm the presence of amphetamine, methamphetamine, MDMA, or related compounds, and is essential for workplace testing, legal proceedings, and clinical situations where definitive identification matters. Sample type is urine collected under chain-of-custody protocols when required.
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