Sometimes your sample will be taken in your doctor's office and sent out to a lab for testing. Other times your doctor will send you directly to a DLO Patient Service Center (PSC) for lab testing. With an extensive network of more than 45 PSCs and draw sites, you can find a location close to your doctor's office and where you live and work. To find a nearby PSC, please visit our Patient Service Center Locations page.
Autoimmune diseases are among the most complex conditions to diagnose. Symptoms can be vague, overlap across conditions, and vary significantly from one patient to another.

