Buprenorphine, Urine Screen with Reflex to Quantitation
Label Mnemonic: BUPRUR
Epic Lab Code: LAB8598
Downtime Form: A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery
Commercial Mail-out Laboratory
5231 RCP
Random Urine
Collection Medium:
Preferred Minimum: 4 mL random urine
Absolute Minimum: 2 mL random urine
Rejection Criteria:
Unknown fluids, pharmaceutical preparations, and breast milk. Specimens exposed to repeated freeze/thaw cycles.
Turn Around Time:
1-4 days upon receipt at reference laboratory
Reference Range:
Screen cutoff concentration: 5 ng/mL
Interpretive Data:
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 at which the screening test can detect a drug or metabolite varies. Specimens for which drugs or drug classes are detected by the screen are reflexed to a second, more specific technology (GC/MS and/or LC-MS/MS). 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.

For medical purposes only; not valid for forensic use.
This test is useful for general screening in contexts of compliance and/or abuse. A screen with reflex testing is the preferred method for ruling out buprenorphine exposure.
Qualitative Enzyme Immunoassay/Quantitative Liquid Chromatography - Tandem Mass Spectometery
CPT Code:
80307; if positive add 80348