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Home > Available Tests > Barbiturate, Urine (Screen)
Specimen Type
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.
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.
The 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 J. Carr on January 02, 2026
UNC HospitalsMcLendon Clinical Laboratories101 Manning DriveChapel Hill, NC 27514