RHEUMATOID FACTOR IgA

RF IGA IS A SPECIFIC TYPE OF RHEUMATOID FACTOR (RF), AN AUTOANTIBODY THAT CAN BE FOUND IN THE BLOOD OF INDIVIDUALS WITH RHEUMATOID ARTHRITIS (RA). WHILE MOST RF TESTS MEASURE IGM LEVELS, RF IGA IS A LESS COMMON BUT EQUALLY IMPORTANT MARKER FOR RA. ELEVATED LEVELS OF RF IGA CAN BE INDICATIVE OF RA, ESPECIALLY IN INDIVIDUALS WITH EARLY-ONSET OR MILD DISEASE. HOWEVER, ITS IMPORTANT TO NOTE THAT RF IGA IS NOT EXCLUSIVE TO RA AND CAN ALSO BE FOUND IN OTHER AUTOIMMUNE CONDITIONS OR HEALTHY INDIVIDUALS. THEREFORE, IT IS OFTEN USED IN CONJUNCTION WITH OTHER DIAGNOSTIC TESTS TO CONFIRM THE PRESENCE OF RA.