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Urine Drug Test

The urine drug test is the workhorse of workplace and clinical screening β€” fast, affordable, and widely used. LabX confirms every presumptive positive by LC-MS/MS, so a urine result is more than a cup color-change.

Detection windows

Most drugs are detectable in urine for 1–4 days; chronic marijuana use can be detected for weeks. This "recent use" window is exactly what employers want for random and post-accident testing.

Supervised vs. unsupervised collection

An unobserved collection is convenient; an observed / supervised collection removes the tampering risk that undermines a result. LabX offers observed collection for programs that need defensibility. See why supervised screening protects your workplace.

Order a kit → Set up an employer account

Talk to a licensed physician

A drug test result is information, not a diagnosis or medical advice. Review your results, any medications you take and any symptoms with a licensed physician, and call 911 or go to an emergency department if someone is in danger. See our medical disclaimer.

Common questions

How long do drugs stay in urine?
Typically 1–4 days for most substances; chronic THC can persist for weeks.
Is a urine test accurate?
A screened urine sample with LC-MS/MS confirmation is highly accurate and defensible.
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Medical disclaimer. LabX Diagnostics and Vantage provide laboratory testing only. Test results and information on this site are for informational purposes and are not medical advice, diagnosis or treatment. Always consult a licensed physician or other qualified healthcare provider about your results and before making any health decision. If you think you may have a medical emergency, call 911. Read the full disclaimer.

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