Urine Drug Screen (UDS)

Toxicology

Normal Reference Ranges

Adult

Negative Qualitative

Pediatric

Negative Qualitative

Clinical Significance

Rapid immunoassay for common drugs of abuse. Highly prone to false positives (e.g., PPIs triggering false positive THC, or Poppy seeds triggering Opiates) and requires confirmatory GC/MS.

Causes of High

  • Use of Amphetamines, Cocaine, Opiates, PCP, THC, Benzodiazepines

Causes of Low

  • Normal finding