6/30/23, 11:00 PM Direct Coombs test, positive Pathway Feedback Search Clinical Topics Home Findings Direct Coombs test, positive Direct Coombs test, positive More common causes Human immunodeficiency virus type 1 infection Less common causes Ulcerative colitis Infectious mononucleosis Paroxysmal cold hemoglobinuria Waldenstr m's macroglobulinemia Cervical Mycoplasma infection Epstein-Barr virus infection Systemic lupus erythematosus Ovarian cancer Congenital syphilis Hemolytic disease of the newborn Chronic lymphocytic leukemia Non-Hodgkin lymphoma Erythroblastosis fetalis Uncommon causes Primary autoimmune hemolytic anemia X-linked immunodysregulation polyendocrinopathy and enteropathy https://web.pathway.md/findings/reckFgLo91pxjKSYm 1/2 6/30/23, 11:00 PM Direct Coombs test, positive Pathway Angioimmunoblastic lymphadenopathy with dysproteinaemia https://web.pathway.md/findings/reckFgLo91pxjKSYm 2/2