Ordering Recommendation

Useful for general screening in contexts of compliance and/or abuse. A screen with reflex testing is the preferred method for ruling out barbiturate exposure. For follow-up testing of a presumptive result, Barbiturates, Urine Quantitative (2012213) is preferred.

Mnemonic
BARB RFX U
Methodology

Qualitative Enzyme Immunoassay/Quantitative Gas Chromatography-Mass Spectrometry

Performed

Sun-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 4.0 mL urine with no additives or preservatives to an ARUP Standard Transport Tube. (Min: 2.0 mL)

Storage/Transport Temperature

Room temperature.

Unacceptable Conditions

Breast milk. Pharmaceutical preparation.

Remarks
Stability

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

Reference Interval

Screen cutoff concentration: 200 ng/mL

Interpretive Data

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 at which the screening test can detect a drug or metabolite varies.  Specimens for which drugs or drug classes are detected by the screen are reflexed to a second, more specific technology (GC/MS and/or LC-MS/MS). 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.

For medical purposes only; not valid for forensic use.

Compliance Category

FDA

Note

If the specimen screens positive, then Confirmation/Quantitation by GC-MS (ARUP test code 2012213) will be added to confirm result. Additional charges apply.

Hotline History
N/A
CPT Codes

80307; if reflexed, add 80345 (Reflexed Alt Code: G0480 )

Components
Component Test Code* Component Chart Name LOINC
0092196 Barbiturates, Urn, Screen 19276-5
2012212 Screen, Urine Interpretation 54247-2
* 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
  • Pentobarbital
  • 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
  • Phenobarbital
  • Phenobarbitone
  • Quinalbarbitone
  • Sandoptal
  • Secobarbital
  • Seconal
  • Solfoton
  • Tuinal
Barbiturates, Urine Screen with Reflex to Quantitation