Drug Test -

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

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

: Highly accurate but invasive; usually reserved for accidents or high-stakes clinical settings. Standard Drug Panels : The most common for employment and legal

: Provides a long-term history of drug use, often looking back up to 90 days. DRUG TEST

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

: Can include 8, 10, 12, or even 25 panels to screen for prescription drugs like benzodiazepines, barbiturates, and synthetic opioids like fentanyl. Drugs of Abuse Home Use Test - FDA