97% of people with lupus will test positive for ANA Other blood tests Some blood tests measure levels of proteins that aren’t antibodies such as c-reactive protein and complement levels. The levels of ...

The cause of lupus has long escaped doctors trying to treat the autoimmune disease. However, a study published this week identified a cause of lupus based on molecular defects in patients' blood.

97% of people with lupus will test positive for ANA Other blood tests Some blood tests measure levels of proteins that aren’t antibodies such as c-reactive protein and complement levels. The levels of ...