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Benzodiazepines, Urine, Quantitative

Item Value
Available Stat? No
Test code BNZQNT
Performed by ARUP
Sendout? Yes
Method Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Container type Urine container
Amount to Collect 0.5 mL
Sample type Urine
Preferred volume 0.5 mL
Min. Volume 0.3 mL
Processing notes Aliquot and freeze sample. Transport to CB frozen. Order ARUP test code 2008291.
Ref Lab Rejection Criteria Specimens exposed to repeated freeze/thaw cycles.
Normal range
Synonyms Benzodiazepines Confirmation, Urine
Stability Ambient: 1 week; Refrigerated: 1 month; Frozen: 3 years
Turn around times 2-5 days
Additional information Drugs covered: alprazolam, alpha-hydroxyalprazolam, chlordiazepoxide, clonazepam, 7-aminoclonazepam, diazepam, lorazepam, midazolam, alpha-hydroxymidazolam, nordiazepam, oxazepam and temazepam..

Positive cutoff: 20 ng/mL unless specified below:
Alprazolam 5 ng/mL
Alpha-hydroxyalprazolam 5 ng/mL
Clonazepam 5 ng/mL
7-aminoclonazepam 5 ng/mL

For medical purposes only; not valid for forensic use.

Identification of specific drug(s) taken by specimen donor is problematic due to common metabolites, some of which are prescription drugs themselves. The absence of expected drug(s) and/or drug metabolite(s) may indicate non-compliance, inappropriate timing of specimen collection relative to drug administration, poor drug absorption, diluted/adulterated urine, or limitations of testing. The concentration value must be greater than or equal to the cutoff to be reported as positive. Interpretive questions should be directed to the laboratory.
CPT coding 80346 (Alt code: G0480)
Last Updated 1/9/2018 6:21:53 PM
Entry Number 1827
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