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Test Code BARB Barbiturates, Identification with Quantitation, Serum

Performing Laboratory

Quest Diagnostics' Nichols Institute, Inc. - Chantilly


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

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

Day(s) and Time(s) Performed

Monday through Saturday

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