Urine Drug Screen

The Urine Drug Screen (UDS) has several limitations, including only testing for a limited for a number of drugs, plus false positives/negatives are common. There can be a lack of temporal correlation with the UDS result and the clinical presentation. Urine drug screens at one hospital are also not always the same at another site.

Should urine drug screens be done in the ER?

Urine drug screens at the emergency department level does not improve the routine management of psychiatric patients.[1][2] However, there still remains diagnostic utility in the urine drug screen when there are challenges in determining a primary psychosis disorder versus a substance-induced psychotic disorder.[3]

See Supplement 4 from CAMH Suboxone Guidelines for more information regarding UDS