A 5–12 panel test is a type of multi-drug screening used to detect several substances in the body at the same time. A 5-panel test checks for common drugs like marijuana, cocaine, amphetamines, opiates, and PCP. Higher panel tests, such as 10 or 12 panels, include additional drugs like benzodiazepines, barbiturates, and prescription medications. These tests are widely used in workplaces, hospitals, and legal settings for monitoring drug use. They are usually done using urine samples and provide quick and reliable results.