We are announcing the addition of psilocin and bufotenine to our urine drug testing. These psychoactive substances can be ordered as an individual test or an add-on to any urine drug panel beginning January 6, 2025.

Xylazine & Psilocin Testing in Hair/Nail, Gabapentin & DXM Testing in Urine, And More Cannabinoids in ChildGuard®

19-May-2025

We are excited to announce new offerings and improvements to our testing coming on May 19, 2025.

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18-Apr-2016

Quantity Not Sufficient (QNS) Explained

02-Mar-2016

Antihistamines and OTC Amphetamines to be Discontinued in Urine

01-Feb-2016

Cutoffs for Antihistamine Drugs in Urine Lowered

02-Aug-2015

Updated Policy Regarding Insufficient Specimen Volumes Updated Collection Instructions

01-Apr-2015

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USDTL Urine Research

Poppy Seed Consumption May Be Associated With Codeine – Only Urine Drug Test Results 27-Dec-2022

Long-Term Detection of Propofol Glucuronide in Urine Following Anesthetic Induction and Maintenance with Propofol 01-Oct-2013

Hair analysis versus conventional methods of drug testing 01-May-2010

An Assay Evaluation of the Methylene Blue Procedure for the Detection of Surfactants in Urine 01-Jul-2000

Highly sensitive micro-plate enzyme immunoassay screening and NCI-GC-MS confirmation of flunitrazepam and its major metabolite 7-aminoflunitrazepam in hair 01-Oct-1999

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USDTL Assisted Urine Research

Afghanistan Treatment Center Study: Children’s Hair, Oral Fluid, and Urine Drug Testing 14-Nov-2014

Prenatal Cocaine Exposure: an Examination of Childhood Externalizing and Internalizing Behavior Problems at Age 7 Years 12-Feb-2009

Modeling Sources of Self-Report Bias in a Survey of Drug use Epidemiology 01-May-2005

Field Testing the Microgenics DRI EtG Assay for Georgia’s Treatment 01-Jan-2005

Tobacco-Reporting Validity in an Epidemiological Drug-use Survey 01-Jan-2005

Expressive and Receptive Language Functioning in Preschool Children with Prenatal Cocaine Exposure 01-Oct-2004

Drug Test Feasibility in a General Population Household Survey 08-Mar-2004

The Utility of Drug Testing in Epidemiological Research: Results from a General Population Survey 01-Feb-2004

Severity of Prenatal Cocaine Exposure and Child Language Functioning Through Age 7 Years: a Longitudinal Latent Growth Curve Analysis 01-Jan-2004

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Foundational Urine Research

The efficacy of hair and urine toxicology screening on the detection of child abuse by burning 01-Jul-2009

Urinary ethyl glucuronide (EtG) and ethyl sulphate (EtS) assessment: valuable tools to improve verification of abstention in alcohol-dependent patients during in-patient treatment and at follow-ups 01-Jun-2009

Detection times for urinary ethyl glucuronide and ethyl sulfate in heavy drinkers during alcohol detoxification 01-Jan-2009

Random drug testing to reduce the incidence of addiction in anesthesia residents: preliminary results from one program 01-Aug-2008

Prenatal Cocaine Exposures and Dose-Related Effects on Infant Tone and Behavior 08-Dec-2006

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Urine White Papers

Psilocin: An Annotated Bibliography 25-Jun-2025

Ethyl Glucuronide (EtG) and Ethyl Sulfate (EtS) Concentrations Following Inhalation of Ethanol Vapor 07-Jan-2010

Ethyl Glucuronide (EtG) and Ethyl Sulfate (EtS) Concentrations Following Use of Ethanol Containing Hand Sanitizer 07-Jan-2010

Ethyl Glucuronide (EtG) and Ethyl Sulfate (EtS) Concentrations Following Use of Ethanol Containing Mouthwash 07-Jan-2010

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