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Drugs of Abuse Testing

Download Drugs of Abuse Testing Guide

Specific Drug Groups Interpretive Guide

Use the dropdown to jump to a specific drug group information page.

Drugs of Abuse Testing Information

Click the + to expand each section.

+ Drug Abuse Survey

+ Confirmed Drug Abuse Survey

+ Test Options by Drug Group

+ Therapeutic Drug Monitoring

+ Chain-of-Custody Testing

+ Prescription and Over-the-Counter (OTC) Drug Screens

Limits of Detection (LOD)

May only be able to detect drug when taken in excess, therapeutic administration may not be detected.

Masking Agents/Adulterants

Attempts to “beat the test” usually involve the use of a masking agent. Masking agents function as either an assay-interfering substance or a urine diluent.

Adulterant testing is performed for urine drugs of abuse tests.


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