Tag: testsure

Urine testing

A closer look: specimen validity testing

March 12, 2019 By

With the use of specimen validity testing (SVT), once a specimen arrives at our laboratory, we help ensure the integrity of each test.

Blog Series

A Closer Look: Series introduction

February 8, 2019 By

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 By

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 By

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 By

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