This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Non-immune hemolytic anemia occurs in - \nSelect and explain. \nA. SLE, B. P. vivax infection, C. CLL, D. CML', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Non-Immune hemolytic anemia\n\nIn non-immune hemolytic anemia, hemolysis occurs without formation of antibodies against RBCs.\nCombs test is negative, therefore it is also known as Coombs negative hemolytic anemia.\n\nCauses are : -\n\nDrugs Ribavirin\nToxins → Snake venum, plant poisons such as aesculin.\nMechanical trauma to RBCs → prosthetic heart valve, thrombosis in microcirculation.\nMicroangiopathic hemolytic anemia :-\xa0Thrombotic thrombocytopenia purpura (TTP), Hemolytic uremic syndrome (HUS), DIC, HELLP syndrome.\n\n\nInfections : -\n\nBabesiosis, Malaria, Clostridium perfringens sepsis.\nHereditary spherocytosis, Thalassemia, SCA,\nParoxysmal nocturnal hemoglobinuria, Liver disease.', 'role': 'assistant'}]