Latest Presentations

CCDG (Chicago Chromatography Discussion Group) Presentation

Demethylated Metabolites of Oxycodone and Hydrocodone in Hair and Nail Specimens by Amy Alexander

Direct Alcohol Biomarkers - EtG and PEth Webinar

Direct Biomarkers of Alcohol Use by Dr. Adam Negrusz

Follow a Fingernail Specimen Through the Lab by Joseph Jones

Marijuana in Hair & Fingernail Webinar

Maternal Marijuana Use by Joseph Jones

Methamphetamine and Amphetamine in Matching Nail and Hair Samples by Dr. Irene Shu

The Impact of Neonatal Abstinence Syndrome on One West Virginia Community by Dr. Loudin

The Importance of Following Forensic Principles in Newborn Drug Testing by Dr. Irene Shu

Umbilical Cord Drug Testing: A Discussion of Prevalent Issues

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Latest Videos

Umbilical Cord Collection Training Video

The Future of Hair Testing

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Latest Press Releases

Laboratory Improves Propofol Testing Following New Research Data Laboratory Improves Propofol Testing Following New Research Data


New data from researchers at USDTL shows that propofol use can be detected in urine samples for as long as 28 days following low-dose anesthesia.

Update to Meconium Collection Update to Meconium Collection


To help you have the best possible solutions that science can offer, we are consistently evaluating our processes to keep them ahead of the curve. As science progresses, so do our capabilities. Because of such progress, we have some important updates to the meconium collection process.

Report Change Notification Report Change Notification


Effective July 18, 2016, USDTL will be implementing a new way of reporting quantitative results. In order to satisfy accreditation requirement, the concentrations of drugs exceeding the Upper Limit of Quantification (ULOQ) for any given drug will be reported as > ULOQ (greater than ULOQ). The ULOQ will be provided.

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