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Test Code LAB365 Barbiturate GC/MS Confirmation Urine - Covenant Laboratory Only

Department

Send Outs

Reference Lab Test Number

UCBAR

Primary Collection Container

Yellow Urine Vacutainer (No Additive)

Alternate Collection Container

Sterile Urine Cup

Transport

Urine Refrigerated

Preferred Transport Temperature

Refrigerated

Processing

Mix well and send 10.0 mL urine in a screw-capped plastic container.

Stability

Room Temperature: 48 hours

Refrigerated: 14 days

Frozen: 14 days

Minimum Testing Volume

3.0 mL

Reference Range

Decision level: 40 ng/mL (200 ng/mL for phenobarbital)

Methodology

Gas Chromatography/Mass Spectrometry

Performed

Monday-Friday

Reported

2-3 days

CPT Codes

80345 (G0480)

Unacceptable Conditions

Urine catheter cup (with needle)

Additional Information

Components

GC/MS confirmation for identification of amobarbital, butabarbital, butalbital, pentobarbital, secobarbital, and phenobarbital. (Or please contact the laboratory if another barbiturate is suspected.) Also see Drug Abuse Screen, Urine Panels with GC/MS confirmations.