Fingernail Resources
Fingernail Resources
Fingernail Drug Testing Fingernail Drug Panels
Fingernail Collection Instructions
Fingernail Videos
Demethylated Metabolites of Oxycodone and Hydrocodone in Hair and Nail Specimens by Amy Alexander
Fingernail Infographics
Fingernail Poster Presentations
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
Been drinking? The answer is right at your fingertips See Coverage
Made in Milwaukee, University of Wisconsin – Milwaukee, 2015 Research Report
Project Harmony testing reveals startling figures See Coverage
KETV – Omaha, Nebraska, February 16, 2015
Wisconsin first to test repeat drunken drivers with alcohol biomarkers See Coverage
Wisconsin Center for Investigative Journalism, December 1, 2014
View All USDTL Tests In the News
Fingernail Announcements
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.
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.
Update to Fingernail Collection
06-Oct-2016
18-Apr-2016
Quantity Not Sufficient (QNS) Explained
02-Mar-2016
USDTL is now ISO/IEC 17025 Accredited
22-Sep-2015
Changes to Fingernail Collection Procedures
27-Feb-2015
Fingernail Articles
Quantity Not Sufficient 11-Nov-2016
Nailing Drug & Alcohol Testing 03-Aug-2015
A Moment In Time 02-Feb-2015
The Long Game 02-Feb-2015
Testing Nails for Drugs 01-Oct-2012
USDTL Fingernail Research
Fingernail FAQs
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Contact USDTL
1.800.235.2367
Client Services
By Phone: 1.800.235.2367
Business Hours (CST)
Monday....................7am-7pm
Tuesday....................7am-7pm
Wednesday.............7am-7pm
Thursday..................7am-7pm
Friday........................7am-7pm
Saturday...................8am-5pm
Newsletters, Posters, and Catalogs
Our print materials will keep you up to date on the latest news in drug and alcohol testing.
Request Your Collection Supplies
For your convenience, USDTL provides test collection supplies at no additional charge.
