Complete blood cell count and peripheral blood smear (blood film) is essential diagnostic tool. When a patient has family history of hemolytic anemia but the results of direct antiglobulin test is negative PBS could help to diagnose<unk><unk> . Osmotic fragility tests and eosin 5 maleimide (EMA)binding are another screening tests for detecting red cell membrane defects.
Laboratory<unk>  consistent with the diagnosis of<unk><unk>  include evidences of hemolysis such as high concentrations of indirect bilirubin and LDH, decreased haptoglobin levels; an elevated reticulocyte count and immature reticulocyte fraction.
Coombs test or direct antiglobulin test and Potassium should also be measured.
Hereditary elliptocytosis laboratory findings
Paroxysmal nocturnal hemoglobinuria laboratory findings
Fanconi anemia laboratory findings
Autoimmune hemolytic anemia laboratory findings
Diamond-Blackfan anemia laboratory findings
Hemolytic anemia imaging findings
Microangiopathic hemolytic anemia laboratory findings
Hemolytic anemia laboratory findings