There are several groups where screening for<unk>  should be undertaken. These include patients with unexplained thrombosis who are young, have thrombosis in an unusual site (e.g. intra-abdominal veins, cerebral veins, dermal veins), have any evidence of hemolysis (e.g. a raised LDH), or have a low red blood cell, white blood cell, or platelet count. Those who have a diagnosis of aplastic anemia should be screened annually.
Paroxysmal nocturnal hemoglobinuria
Paroxysmal cold hemoglobinuria
Hereditary spherocytosis
Beta thalassemia
Congenital hemolytic anemia
Hemoglobinemia
Alpha-thalassemia
Congenital dyserythropoietic anemia type II