General Info

GS Testing is a collection site for DOT and Non-DOT drug screening collections including: Pre-employment, Random, Reasonable Suspicion, Return-to-duty, Post-accident and Follow-up testing. We are qualified collectors in Oral Fluids, Hair, Urine, Breath Alcohol testing and have now added Blood Draws and TB Testing. 1.) Drug Test Lake Oswego 2.) Blood Test Lake Oswego 3.) 24 hour drug Screening Portland 4.) DOT Drug Test Portland 5.) Forensic Drug Screen Lake Oswego