ARUP's Laboratory Test Directory

Librium and Nordiazepam : 0090148

Mnemonic: LIB

Methodology: Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Performed: Mon, Thu
Reported: 1-4 days
Specimen Required: Collect: Plain red. Also acceptable: Lavender (K2 or K3EDTA) or pink (K2EDTA).

Specimen Preparation: Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)

Storage/Transport Temperature: Frozen.

Unacceptable Conditions: Whole blood. Gel separator tubes, light blue (citrate), or yellow (SPS or ACD solution).

Stability (collection to initiation of testing): After separation from cells: Ambient: 4 hours; Refrigerated: 24 hours; Frozen: 5 days
Reference Interval:
Dose-Related Range:
Librium:                     
0.5-3.0 µg/mL - Based on dosages up to 100 mg.
Toxic: > 5.0 µg/mL

Nordiazepam:
0.06-1.80 µg/mL - Based on normal dosages.
Toxic: > 2.5 µg/mL
CPT Code(s): 80154 x2
Cross References: Chlordiazepoxide (Librium and Nordiazepam), Chlordiazepoxide and Metabolite (Librium and Nordiazepam), Kolpoxide (Librium and Nordiazepam), Librax (Librium and Nordiazepam), Libritabs (Librium and Nordiazepam), Librium and Metabolite (Librium and Nordiazepam), Misural (Librium and Nordiazepam), Mitran (Librium and Nordiazepam), Multom (Librium and Nordiazepam), Poxi (Librium and Nordiazepam), Risolid (Librium and Nordiazepam), Sonimen (Librium and Nordiazepam), Tropium (Librium and Nordiazepam), Vovapam (Librium and Nordiazepam), Zetran (Librium and Nordiazepam)