View All Locations Go Back Salem Health Laboratory – Dallas 525 SE Washington St. Dallas Oregon 97338 Phone: 503-814-5227 Lab hours Monday through Friday — 6 a.m. to 8 p.m. Saturday & Sunday — 7:30 a.m. to 8 p.m. COVID-19 testing hours (drive thru only) Monday through Friday — 7 a.m. to 5 p.m. Saturday — 9 a.m. to 1 p.m. Services Lab services Additional services offered: Arterial blood gas (ABG) testing Glucose tolerance test (GTT) — by appointment only Phenylketonuria (PKU) testing Therapeutic phlebotomy — by appointment only Urine drug screening — (non-NIDA) collections