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Test Code BARB Barbiturates, Identification with Quantitation, Serum

Performing Laboratory

Quest Diagnostics' Nichols Institute, Inc. - Chantilly

Methodology

Gas Chromatography-Mass Spectrometry (GC-MS)

Includes amobarbital, butabarbital, pentobarbital, phenobarbital, and secobarbital.

Reference Values

See report.

Test Classification and CPT Coding

80101 x 5

Day(s) and Time(s) Performed

Monday through Saturday

Physician Office Specimen Requirements

Container/Tube:  Dark blue-top tube(s) or plain, red-top tube(s)

Specimen:  2 mL of serum

Transport Temperature:  Refrigerate

Useful For

Extensively used for hypnotics, sedatives, and anesthetics. Readily absorbed from stomach. Duration of action of Barbiturates in therapeutic doses varies from: 8-16 hours (long acting e.g., Phenobarbital); 4-8 hours (intermediate acting e.g., Amobarbital); 3-6 hours (short acting e.g., Pentobarbital). Barbiturates may enhance other CNS depressants, such as Ethanol, Morphine derivatives, tranquilizers, and Resperine.

Computer Interface Code

PDM # 5940060