what test is for lupus
Lab tests for lupus Many different laboratory tests are used to detect physical changes or conditions in your body that can occur with lupus. Each test result adds more information to the picture your doctor is forming of your illness. First, some basic facts about diagnosing lupus: 1  Lab work alone cannot diagnose lupus. 2  97 percent of those with lupus will have a positive antinuclear antibody test (ANA). 3  Itâs common for positive lab tests to come and go over time. 4  Itâs very common to get somewhat different results at different labs.