Test Overview
Test Methodology

GC/MS

Test Usage

Detection of barbiturates, including amobarbital, butabarbital, butalbital, pentobarbital, phenobarbital, and secobarbital.

Reference Range *

Non-detected

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

Positive immunoassay results should be considered presumptive. Positive immunoassay results will be confirmed by GC/MS if requested by the client.

Test Details
Days Set Up
Daily
Analytic Time

1 - 2 days

Soft Order Code
MSBAR
MiChart Code
Barbiturate Confirmation, Urine
Synonyms
  • MSBARB
  • BARBITURATE CONFIRMATION
  • MSBARB
Laboratory
Chemical Pathology
Section
Drug Analysis
Specimen Requirements
Collection Instructions

Collect random urine specimen. Refrigerate.

Normal Volume
Screen: 5 mL urine, Confirmation: 10 mL urine
Minimum Volume
Screen: 1 mL urine, Confirmation: 10 mL urine
Additional Information

Barbiturate Screen (UBARB) and Barbiturate Qualitative Confirmation (MSBAR) performed by Drug Analysis and Toxicology Laboratory. Barbiturate Quantitative (BARBU) Confirmation sent to Warde Medical Laboratory.

Billing
CPT Code
80345
Fee Code
20025
LOINC
16429-3
Resources