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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Benzodiazepines, Serum
Test Code70071
CPT Codes
80346
Includes
Alprazolam, Alpha-Hydroxyalprazolam, Alpha-Hydroxytriazolam, Chlordiazepoxide, Clonazepam, Desalkylflurazepam, Diazepam, Lorazepam, Midazolam, Norchlordiazepoxide, Nordiazepam, Oxazepam, Temazepam, Triazolam
Preferred Specimen
2 mL serum collected in a red-top tube (no gel)
Minimum Volume
1 mL
Transport Temperature
Frozen
Specimen Stability
Room temperature: 24 hours
Refrigerated: 72 hours
Frozen: 14 days
Refrigerated: 72 hours
Frozen: 14 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gel barrier/Serum Separator Tube
Methodology
Chromatography/Mass Spectrometry
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Tuesday, Thursday, Saturday Morning
Report available: 4 Days
Report available: 4 Days
Reference Range
Temazepam | 50-1000 ng/mL |
Oxazepam | |
Therapeutic | 200-500 ng/mL |
Potentially toxic | >2000 ng/mL |
Chlordiazepoxide | 100-3000 ng/mL |
Norchlordiazepoxide | 100-3000 ng/mL |
Nordiazepam | 100-1500 ng/mL |
Alprazolam | 10-50 ng/mL |
Alpha-Hydroxyalprazolam | 5-25 ng/mL |
Alpha-Hydroxytriazolam | 5-20 ng/mL |
Clonazepam | 30-60 mcg/L |
Desalkylflurazepam | 30-150 ng/mL |
Diazepam | 100-1500 ng/mL |
Lorazepam | 50-240 ng/mL |
Midazolam | 50-600 ng/mL |
Triazolam | 5-20 ng/mL |
Clinical Significance
Benzodiazepines are widely used as anxiolytics, sedative- hypnotics, muscle relaxants, and anticonvulsants. Benzodiazepines include drugs such as diazepam Valium®, chlordiazepoxide Librium®, oxazepam Serax®, lorazepam Ativan®, alprazolam Xanax®, clonazepam Clonopin® and triazolam Halcion®. Many common benzodiazepines are detected in urine by their metabolites oxazepam and nordiazepam. Psychological and physiological addictions, misuse and abuse of benzodiazepines have been described.