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Test Code

BXYLA

Test Name

Xylazine, Quantitation, Whole Blood

CPT Codes

AMA 80375, CMS G0480

Expected Turnaround Time

5 - 7 days

Clinical Utility

Useful in determining the use or abuse of Xylazine.

Testing includes identification and quantitation of:

Specimen and Container Info

Specimen	Container	Volume
Whole Blood	Grey Top* (Sodium Fluoride, Potassium Oxalate)	3 mL
Whole Blood	Dark Green Top (Lithium Heparin)	3 mL
Whole Blood	Lavender Top (EDTA)	3 mL
Serum	Red Top, Plain	1 mL

*Preferred Specimen

Collection Instructions

No serum separator

Transport Instructions

Transport to the laboratory refrigerated.

Stability Requirements

Room Temperature

7 days

Refrigerated

7 days

Causes for Rejection

Specimens collected in separator tubes will be rejected.

Methodology

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Limitations

Analyte	Reporting Limit (ng/mL)
Xylazine	2

Performing Location

Roble Road Core Laboratory

Alternate Names

Testing Schedule

Routine, 2 times per week