<prompt> All of the following cause intravascular hemolysis, Except:Mismatched Blood transfusionSnake biteThalassemiaParoxysmal Nocturnal Hemoglobinuria PNH  <response>: Answer is C Thalassemia Hemoglobinopathies including thalassemia cause extravascular hemolysis and not intravascular hemolysis. Causes of intravascular hemolysis Blood transfusion - ABO mismatched transfusion - Infected blood Thermal burns Snake bites Sepsis - Bacterial parasitic infections - Clostridial sepsis - Malaria - Baonellosis - Mycoplasma pneumoniae Mechanical hea valves Paroxysmal hemoglobinuria - PNH - PCH Causes of extravascular hemolysis Blood and viral infections - Malaria - Mycoplasma pneumoiae - Infectious mononucleosis Drug-induced hemolysis - G6PDGSH deficiency - Autoimmune drug reactions - Strong oxidant drugschemicals Autoimmune hemolysis - Warm-reacting IgG AIHA - Cold-reacting IgM AIHA Hemoglobinopathies - Thalassemia Membrane structural defect - Hereditary sperocytosis - Hereditary spherocytosis - Acanthocytosis Environmental disorders - MalignancyD1C - TTPHUS 