Fingernail Resources - USDTL

Fingernail Resources

Fingernail Drug Testing Fingernail Drug Panels

Fingernail Collection Instructions

Fingernail Videos

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Fingernail Collection Training Video

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

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The Future of Hair Testing

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USDTL Fingernail Testing FAQ

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Wisconsin Counties Use Long-Term Alcohol Biomarker Testing

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The Benefits of Nail Testing

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Fingernail Infographics

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Fingernail Poster Presentations

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

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

Dane County adopts new Biomarkers for intoxicated driver program See Coverage

NBC 15 WMTV Madison – Madison, Wisconsin, April 26, 2016

New tool tests for drugs in fingernail clippings See Coverage

Fox 31 Denver KDVR-TV – Denver, Colorado, February 17, 2016

Fingernail testing brings battle on drugs within arms reach See Coverage

NewsChannel 3 WTKR – Norfolk, Virginia, February 10, 2016

New drug test at your fingertips — literally See Coverage

WGN Chicago, February 9, 2016

Drug testing at your fingertips: Unique test examines nail clippings because “kids aren’t honest” See Coverage

Fox 6 Now – Milwaukee, Wisconsin, February 4, 2016

Been drinking? The answer is right at your fingertips See Coverage

Made in Milwaukee, University of Wisconsin – Milwaukee, 2015 Research Report

Lab Services Prove Vital See Coverage

Corrections Forum, September/October 2015

Why couldn’t this man stop drinking? See Coverage

WTMJ – Milwaukee, Wisconsin, May 1, 2015

Project Harmony testing reveals startling figures See Coverage

KETV – Omaha, Nebraska, February 16, 2015

Biomarker tests help monitor repeat drunken drivers See Coverage

USA Today, December 1, 2014

Wisconsin first to test repeat drunken drivers with alcohol biomarkers See Coverage

Wisconsin Center for Investigative Journalism, December 1, 2014

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Fingernail Announcements

Kratom Drug Testing in Hair and Nail – Exclusively at USDTL

03-Aug-2020

Cotinine Detection in Hair and Nail Specimens

13-Sep-2021

Long-term detection of the nicotine biomarker cotinine is now available in hair and fingernail specimens. This test was created to determine the exposure of the donor to environmental tobacco smoke and can be added to any hair or nail test panel or ordered as a stand-alone test.

Adding Phenibut, Medetomidine, and Tianeptine Options for Umbilical Cord Tissue, Hair, and Nail Testing

10-Mar-2025

We are announcing the addition of phenibut, medetomidine, and tianeptine to our umbilical cord tissue, hair, and nail testing menus. These substances can be ordered as an individual test or an add-on to any umbilical cord tissue, hair, or nail drug panel.

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.

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

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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Fingernail FAQs

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