Drug Test -

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

A is a technical analysis of a biological specimen—most commonly urine, hair, blood, or oral fluid—to determine the presence or absence of specific illegal drugs or their metabolites. Common Drug Test Types Different testing methods vary by their "detection window,"

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