Barbiturates, Urine

Test Code

8416

CPT Codes
80345 (HCPCS: G0480)

Includes

Amobarbital, Butabarbital, Butalbital, Pentobarbital, Phenobarbital, Secobarbital

Preferred Specimen

10 mL urine collected in a plastic urine container, no preservative

Minimum Volume

5 mL

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: Unacceptable

Methodology
Gas Chromatography/Mass Spectrometry (GC/MS)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

P.M. Sets up 5 days a week.

Report Available

Reports in 3 days.

Clinical Significance

Barbiturates are used as hypnotics, sedatives and anesthetics and are 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 reserpine. Urine should only be used if blood cannot be obtained.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.