Ordering Recommendation

Preferred test to follow-up presumptive results. For general screening, Barbiturates, Urine Screen with Reflex to Quantitation (2012211) is preferred.

Mnemonic
BARB UR
Methodology

Quantitative Gas Chromatography-Mass Spectrometry

Performed

Tue, Thu, Sat

Reported

1-4 days

New York DOH Approval Status
This test is New York DOH 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

Reference Interval
Drugs Covered Cutoff Concentrations
Butalbital 50 ng/mL
Amobarbital 50 ng/mL
Pentobarbital 50 ng/mL
Secobarbital 50 ng/mL
Phenobarbital 50 ng/mL

Interpretive Data

Methodology: Quantitative Gas Chromatography-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 non-compliance, 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 Statement B: For laboratory developed tests not using a RUO kit, and for FDA approved, cleared or 510(k) exempt assays with alterations. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Note
Hotline History
N/A
CPT Codes

80345 (Alt code: G0480)

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
2012217 Amobarbital, Urn, Quant 11230-0
2012218 Secobarbital, Urn, Quant 19695-6
* 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
  • Amobarbital
  • Amobarbitone
  • Amytal
  • Axocet
  • Butalbital
  • Fioricet
  • Fiorinal
  • Luminal
  • Nembutal
  • Pain Management
  • Pain Management, Barbiturates, Quantitative, with medMATCH, Urine
  • Pain Management, Barbiturates, with Confirmation with medMATCH, Urine
  • Pentobarbital
  • Phenobarbital
  • Phenobarbitone
  • Quinalbartbitone
  • Sandoptal
  • Secobarbital
  • Seconal
  • Solfoton
  • Tuinal
Barbiturates, Urine, Quantitative