2012213
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Barbiturates, Urine, Quantitative

BARB UR
Example Reports
Negative
Positive

Ordering Recommendation

Use to obtain quantitative results or to follow up a presumptive result. For general screening, the preferred test is Barbiturates, Urine Screen with Reflex to Quantitation (2012211).

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation
Collect

Random urine.

Specimen Preparation

Transfer 3.5 mL urine with no additives or preservatives to an ARUP standard transport tube. (Min: 1.5 mL)

Storage/Transport Temperature

Room temperature.

Unacceptable Conditions

Specimens exposed to repeated freeze/thaw cycles.

Remarks
Stability

Ambient: 1 week; Refrigerated: 1 month; Frozen: 3 years

Methodology

Quantitative Liquid Chromatography-Tandem Mass Spectrometry

Performed

Tue, Thu, Sat

Reported

1-7 days

Reference Interval

Drugs Covered
 Cutoff Concentrations
Butalbital 50 ng/mL
Pentobarbital 50 ng/mL
Phenobarbital 50 ng/mL

Interpretive Data

Methodology: Quantitative Gas Chromatography-Mass Spectrometry/Quantitative Liquid Chromatography-Tandem Mass Spectrometry.

Positive cutoff: 50 ng/mL

For medical purposes only; not valid for forensic use.

The absence of expected drug(s) and/or drug metabolite(s) may indicate noncompliance, inappropriate timing of specimen collection relative to drug administration, poor drug absorption, diluted/adulterated urine, or limitations of testing. 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.

Compliance Category

Laboratory Developed Test (LDT)

Note

Compare to; Pain Management, Barbiturates, Quantitative, with medMATCH, Urine; Pain Management, Barbiturates, with Confirmation with medMATCH, Urine.

Hotline History

View Hotline History

 

Hotline History

Date of Change
Test Name Change
Methodology
Performance/Reported Schedule
Specimen Requirements
Reference Interval
Interpretive Data
Note
CPT Code
Component Change
Other Interface Change
New Test
Inactive
02/20/2024
X
N/A

CPT Codes

80345 (Alt code: G0480)

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Components

Component Test Code* Component Chart Name LOINC
2012214 Phenobarbital, Urn, Quant 3950-3
2012215 Butalbital, Urn, Quant 11071-8
2012216 Pentobarbital, Urn, Quant 3926-3
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • Amobarbitone
  • Amytal
  • Axocet
  • Butalbital
  • Fioricet
  • Fiorinal
  • Luminal
  • Nembutal
  • Pain Management
  • Pentobarbital
  • Phenobarbital
  • Phenobarbitone
  • Quinalbartbitone
  • Sandoptal
  • Seconal
  • Solfoton
  • Tuinal
Barbiturates, Urine, Quantitative