Drug Test May 2026

Different testing methods vary by their "detection window," or how far back they can identify drug use.

Tests are often categorized by the number of substances they screen for, known as "panels". DRUG TEST

: Provides a long-term history of drug use, often looking back up to 90 days. Different testing methods vary by their "detection window,"

: Typically screens for Amphetamines, Cocaine, Marijuana (THC), Opiates, and Phencyclidine (PCP). DRUG TEST

: The most common for employment and legal reasons; can detect substances for days or weeks depending on the drug.

: Highly accurate but invasive; usually reserved for accidents or high-stakes clinical settings. Standard Drug Panels

: Often used for recent-use screening; results are usually available within 24 hours.