Category: Toxicology
Keywords: benzodiazepine, oxazepam, toxicology, urine, blood (PubMed Search)
Posted: 5/14/2009 by Bryan Hayes, PharmD
(Updated: 12/4/2024)
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Your patient presents unresponsive with an empty bottle of alprazolam (Xanax). You order a urine and blood toxicology screen. The blood comes back negative for benzodiazepines but the urine test is positive. How do you interpret this result?