Ordering Recommendations

This test is temporarily being sent to Mayo Clinic Laboratories. See testing information here BARBU - Overview: Barbiturates Confirmation, Random, Urine (mayocliniclabs.com)

Collection Instructions

5 mL urine with no additives or preservatives.

Collect

Random urine

Storage/Transport Temperature

Room temperature/Refrigerated

Remarks

This test is intended to be ordered after a positive immunoassay screen.

Stability (from collection to initiation)

Ambient: 1 week; Refrigerated: 1 week; Frozen for long term storage.

Minimum Requirements

3 mL urine

Lab Section

Toxicology

Methodology

Liquid Chromatography-Tandem Mass Spectrometry

Test developed and characteristics determined by UR Medicine Labs

Performed

Sun-Sat

Reported

Within 4 days from receipt (excludes holidays)

Synonyms

  • Barbiturate
  • Pentobarbital (Nembutal)
  • Phenobarbital (Luminal, Solfoton)
  • Secobarbital (Seconal)
  • Butalbital (Fiorinal Fioricet)
  • Amobarbital (Amytal)

Performing Laboratory Website (click below)

UR Medicine Labs

Notes

Drugs covered: butalbital, amobarbital, pentobarbital, secobarbital, and phenobarbital.

Reference Interval

Qualitative Results. 

Positive Cutoff:
Phenobarbital: 120 ng/mL
Butalbital: 20 ng/mL
Amobarbital and/or Pentobarbital: 40 ng/mL
Secobarbital: 60 ng/mL

Interpretive Data

For medical purposes only; not valid for forensic use. Amo/Pento barb are unable to be distinguished from each other. If one or both of these drugs are present, they will be reported as Amobarbital and/or Pentobarbital present. Contact the lab for additional interpretation information.

CPT Codes

G0480 (Alt Code 80345)

LOINC Mapping

19274-0

Order Type (Individual or Group)

I

Result Test ID

CBARB

Reportable?

Y

Result Test Name

CONFIRM BARBS

Result Type (Individual or Group)

I

Type (Alpha or Numeric)

A

Keypad

S-/+

CPT Codes

G0480 (Alt Code 80345)

LOINC Mapping

19274-0

Pricing

Refer to Lab Account Manager. email: labservicesoutreach@urmc.rochester.edu
Specimen Requirements

Ordering Recommendations

This test is temporarily being sent to Mayo Clinic Laboratories. See testing information here BARBU - Overview: Barbiturates Confirmation, Random, Urine (mayocliniclabs.com)

Collection Instructions

5 mL urine with no additives or preservatives.

Collect

Random urine

Storage/Transport Temperature

Room temperature/Refrigerated

Remarks

This test is intended to be ordered after a positive immunoassay screen.

Stability (from collection to initiation)

Ambient: 1 week; Refrigerated: 1 week; Frozen for long term storage.

Minimum Requirements

3 mL urine
Testing

Lab Section

Toxicology

Methodology

Liquid Chromatography-Tandem Mass Spectrometry

Test developed and characteristics determined by UR Medicine Labs

Performed

Sun-Sat

Reported

Within 4 days from receipt (excludes holidays)

Synonyms

  • Barbiturate
  • Pentobarbital (Nembutal)
  • Phenobarbital (Luminal, Solfoton)
  • Secobarbital (Seconal)
  • Butalbital (Fiorinal Fioricet)
  • Amobarbital (Amytal)

Performing Laboratory Website (click below)

UR Medicine Labs

Notes

Drugs covered: butalbital, amobarbital, pentobarbital, secobarbital, and phenobarbital.
Result Interpretation

Reference Interval

Qualitative Results. 

Positive Cutoff:
Phenobarbital: 120 ng/mL
Butalbital: 20 ng/mL
Amobarbital and/or Pentobarbital: 40 ng/mL
Secobarbital: 60 ng/mL

Interpretive Data

For medical purposes only; not valid for forensic use. Amo/Pento barb are unable to be distinguished from each other. If one or both of these drugs are present, they will be reported as Amobarbital and/or Pentobarbital present. Contact the lab for additional interpretation information.

Coding

CPT Codes

G0480 (Alt Code 80345)

LOINC Mapping

19274-0
URM Labs Internal
Test Build

Order Type (Individual or Group)

I

Result Test ID

CBARB

Reportable?

Y

Result Test Name

CONFIRM BARBS

Result Type (Individual or Group)

I

Type (Alpha or Numeric)

A

Keypad

S-/+

CPT Codes

G0480 (Alt Code 80345)

LOINC Mapping

19274-0

Pricing

Refer to Lab Account Manager. email: labservicesoutreach@urmc.rochester.edu

Important Information

Lab Section
Toxicology

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