12-Panel Drug Test
An expanded workplace drug screen covering twelve substance classes, typically adding prescription opioids, benzodiazepines, or other drugs of concern to the standard 10-panel.
Key Facts
- Screens for 12 substance classes — the 10-panel plus additions like expanded opioids or benzodiazepines
- Exact panel composition varies by lab and employer policy
- Used where prescription-drug misuse is a concern: healthcare, safety-sensitive non-DOT roles
- Not a DOT panel — federal testing is limited to the 5-panel
A 12-panel drug test extends the common 10-panel with two additional substance classes — most often expanded opioids (oxycodone, hydrocodone), methadone, buprenorphine, or additional sedative classes, depending on the laboratory menu and employer policy. Employers choose 12-panel testing when prescription-drug misuse is a specific concern: healthcare organizations testing staff with medication access, non-DOT safety-sensitive roles, and post-incident investigations. Because there is no single standard 12-panel, the employer’s policy should name the substances tested. Federal DOT testing does not use 12-panel screens — the DOT panel is fixed at five substance classes — so 12-panel programs are always company-authority tests governed by state drug-testing laws.
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Frequently Asked Questions
- What does a 12-panel drug test screen for?
- Typically the 10-panel core — marijuana, cocaine, amphetamines, opiates, PCP, benzodiazepines, barbiturates, methadone, propoxyphene, and methaqualone (labs vary) — plus two additions such as expanded opioids (oxycodone/hydrocodone) or buprenorphine. Panel composition is not standardized, so the lab’s specific menu and the employer’s policy control what is actually tested.
- Is a 12-panel drug test used for DOT testing?
- No. DOT testing is limited by regulation to the federal 5-panel. A 12-panel is always a non-DOT, company-authority test — employers who need both typically run the DOT 5-panel for regulated positions and a broader panel under their own policy for other roles.
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