Barbiturate, Urine (Screen)

Yellow Top Urine Tube

Specimen Type

Test ID LAB364
CPT Code(s) 80307
Group/Individual Test Individual
Laboratory Core Laboratory
Tube Station Routine: 30
STAT: 888
Specimen Routine:

10 mL Random Urine in Yellow Top Urine Tube (No Preservative/Additive); See important comments

10 mL Random urine in Sterile collection cup is acceptable if refrigerated.

Micro: 4 mL Random Urine in Yellow Top Urine Tube (No Preservative/Additive)
Stability Room Temperature: 7 days
Refrigerated: 30 days
Frozen: <12 months
Availability 24 hrs/day
Turnaround Time Routine: 2 hours
STAT: 1 hour
Reference Range Cutoff Value: <200 ng/mL

Barbituates may be detected in the urine 1-21 days after ingestion. The urine barbiturate screening test detects the presence of the barbiturate secobarbital at a concentration of 200 ng/mL or greater. Other barbiturates are detected: call laboratory for information regarding a specific barbiturate.

Testing is intended for medical purposes only.

This method used is Siemens Atellica CH Barbituates assay and is unable to distinguish between specific barbituates.  This method should be used for screening purposes only. Confirmation testing should be considered for positive screens. Barbiturate Confirmation Urine

For additional information related to drug screening, refer to the Urine Toxicology Chart. Screen components may vary by lab location.

Reviewed by Christopher Parker on January 11, 2022

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514