No one blood test can diagnose autoimmune diseases, but some lab tests can show an inflammatory process and help with the diagnosis. 1:80, 1:160, 1:320, and 1:640 , Quest's comprehensive menu of routine and specialized autoimmune testing, combined with our staff of more than 600 medical experts, brings clarity to this complexity. From screening to prognosis to monitoring, we support your practice with a full range of autoimmune testing, from single biomarker tests to the most comprehensive disease panels., Autoimmune diseases (AID) are a great percentage of the patients needing to be seen by Rheumatologists. Their initial work-up by their primary care physician (PCP) can be helpful in determining who needs to be seen in consultation. If interpreted properly, initial laboratory studies can help the PCP know when to initiate a consultation., , , .