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Fingernail Videos

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Fingernail Infographics

Concerned about detecting synthetic cannabinoids? You will need to expand your drug testing.

Concerned about detecting synthetic cannabinoids? You will need to expand your drug testing.

Alcohol Testing: Think 3-3-3

Alcohol Testing: Think 3-3-3

Reservoir Matrices

Reservoir Matrices

Choosing the Right Test

Choosing the Right Test

Drug Testing Nail: The Benefits Over Hair

Drug Testing Nail: The Benefits Over Hair

How Do You Know it Was Heroin?

How Do You Know it Was Heroin?

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Fingernail Poster Presentations

Demethylated Metabolites of Oxycodone and Hydrocodone in Human Hair and Nail Specimens

Demethylated Metabolites of Oxycodone and Hydrocodone in Human Hair and Nail Specimens

Monitoring Daily Low Dose Oxycodone In Nail Clippings Liquid Chromatography Tandem Mass Spectrometry: Case Study

Monitoring Daily Low Dose Oxycodone In Nail Clippings Liquid Chromatography Tandem Mass Spectrometry: Case Study

The Use of Fingernail Drug Screening in Multiple Convicted OWI Offenders in Kenosha County, WI

The Use of Fingernail Drug Screening in Multiple Convicted OWI Offenders in Kenosha County, WI

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USDTL Fingernail Test In the News

View All USDTL Tests In the News

Fingernail Announcements

Kratom Drug Testing in Hair and Nail – Exclusively at USDTL

03-Aug-2020

Update to Fingernail Collection

06-Oct-2016

Report Change Notification

18-Apr-2016

Quantity Not Sufficient (QNS) Explained

02-Mar-2016

USDTL is now ISO/IEC 17025 Accredited

22-Sep-2015

Updated Policy Regarding Insufficient Specimen Volumes Updated Collection Instructions

01-Apr-2015

Changes to Fingernail Collection Procedures

27-Feb-2015

USDTL Develops Assay to Detect Zolpidem (Ambien®) in Fingernails and Hair

01-Oct-2014

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Fingernail Articles

Nail Samples Show Wider History of Drug Use Than Urine 12-May-2020

Quantity Not Sufficient 11-Nov-2016

The Human Service Center Announces Benefits of Biomarker Program: Improves Recovery and Reduces Recidivism in Repeat Intoxicated Drivers 21-Oct-2016

A Testimony from the field: Use The Right Test to find the Best Answer 28-Jul-2016

Wisconsin First To Test Repeat Drunken Drivers With Alcohol Biomarkers 21-Mar-2016

Hard Evidence 03-Aug-2015

Nailing Drug & Alcohol Testing 03-Aug-2015

A Moment In Time 02-Feb-2015

The Long Game 02-Feb-2015

Alcohol Abuse: How Useful Are Fingernails for Monitoring Long-term Exposure? 01-Jun-2013

The Window of Detection When Using Fingernail Clippings For Drug Testing 01-Jan-2013

Testing Nails for Drugs 01-Oct-2012

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USDTL Fingernail Research

Ethyl glucuronide in hair and ﬁngernails as a long-term alcohol biomarker 27-Mar-2014

The Detection of THCA Using 2-Dimensional Gas Chromatography-Tandem Mass Spectrometry in Human Fingernail Clippings: Method Validation and Comparison with Head Hair 01-Oct-2013

Liquid Chromatography-Tandem Mass Spectrometry Assay to Detect Ethyl Glucuronide in Human Fingernail: Comparison to Hair and Gender Differences 01-Jan-2012

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