My last 3 blood tests (6-mercaptopurine monitoring) have shown a slow but steady increase in mean corpuscular volume (MCV) and red blood cell distribution width. They are highlighted as "high". I'm not seeing the rheumatologist for another 2 months and wonder if this is lupus-related or anything to worry about? Do any of you know? I also have autoimmune hepatitis and Sjogren's syndrome.