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benzodiazepines in the urine

Name benzodiazepines in the urine
Specimen requirements 10 ml of urine
Collection instructions If possible, take first morning urine under supervision.
Procedure remarks Refrigerate before dispatch, and freeze for longer storage;
no additives;
detection time: 1 day to several weeks, depending on the active ingredient
Methodology FPIA (fluorescence polarisation immunoassay),
GC-MS (gas chromatography mass spectrometry) for confirmation
Reference ranges Cut-off: 150 ng/ml
Notes and interpretation The assay only provides a preliminary analytical test result. In particular, preliminary positive findings should be confirmed using a more specific method (e.g. GC-MS).