1. Home >
  2. Quest Urine Drug Screen
Stone Crusher

Quest Urine Drug Screen

Get Latest Price

Dec 04 2018nbsp0183321 Presumptive Drug Testing The most common screening methods used to detect marijuanacannabinoid in urine is by enzyme immunoassay EIA THCCOOH is usually detected by EIA however due to crossreactivity other cannabinoids present in the urine may also be reactive with the marijuana cannabinoid EIA