Barbiturates screen, urine

Test Code

BARBITURATE SCREEN PANEL

Alias/See Also

DAU, OVDS, CAUS
Chemistry

Includes

Barbiturates screen
Creatinine
pH
Specific Gravity

Preferred Specimen

Random urine

Minimum Volume

5 mL

Transport Temperature

Refrigerate

Specimen Stability

Refrigerated (2-8°C): 5 days
Freeze at -20°C or colder if not tested within 5 days.
Avoid freeze/thaw cycles

Methodology
EIA

Setup Schedule

M-F

Report Available

TAT 1 - 3 days

Reference Range

Analyte	Reference range
Barbiturate	None detected
pH	4- 10
Specific gravity	1.003 - 1.020
Creatinine	>20 mg/dL

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

Performing Laboratory
Test performed at West Roxbury Chemistry Lab
Contact: Jonathan Dryjowicz-Burek 857-203-5973

Last Updated: November 20, 2025

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.