Can levalbuterol (Xopenex) cause urine to test positive for amphetamines? —William L. Powell, Orland, Calif. Drug screens falsely positive for amphetamines have been associated with use of the Vicks ...

By providing fast results, detecting a wide range of substances, and simplifying procedures, these kits support informed ...

The Association for Diagnostics & Laboratory Medicine (ADLM) has released updated expert guidance on urine drug testing for patients in the emergency department (ED). As drug misuse and testing ...

Three relatives test positive for methamphetamine but claim results are false and provide independent negative tests.