Tag: testsure

Blog Series

A Closer Look: Series introduction

February 8, 2019

A new year brings new beginnings. That said, we are excited to introduce our new blog series called A Closer Look.

Drug Testing

A Closer Look: Unit Codes and their purpose

December 14, 2018

Drug testing terminology is expansive and sometimes complex. For that reason we're providing clarity to one of the most commonly misused terms.

Urine testing

Add certainty with specimen validity testing

December 18, 2015

Quest Diagnostics offers specimen validity testing with varying levels of quality assurance to help ensure the integrity of a urine drug test.

New to Drug Testing

New to drug testing: Specimen validity testing

February 14, 2014

Collectors keep donors from contaminating specimen, but also take measures at the laboratory to help ensure that your test results are accurate.