People who have experienced chronic abdominal pain, diarrhea, fever, weight loss, and anemia may be examined for signs of Crohn's disease. In addition to a complete medical history and physical examination, diagnostic procedures for Crohn's disease may include: Blood tests.
The differential diagnosis of lymphocytopenia includes: 1  Infections, acute General acute infections. 2  Immunodeficiency AIDS. 3  Immune Systemic lupus erythematosis. 4  Endocrine ACTH. 5  Lymphatic circulation defects Intestinal lymphangectasia. 6  Medications Corticosteroids. 7  Miscellaneous Renal failure.
Relative lymphocytosis occurs when there is a higher proportion (greater than 40%) of lymphocytes among the white blood cells, while the absolute lymphocyte count (ALC) is normal (less than 4000 per microliter).ymphocytosis is usually detected when a complete blood count is routinely obtained. The absolute lymphocyte count (ALC) can be directly measured by flow cytometry, or calculated by multiplying the total white blood cell (WBC) count by the percentage of lymphocytes found in the differential count.