This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parasitology, Subject name: Microbiology
[{'content': 'Black water fever is caused by \nSelect and explain. \nA. Kalaazar, B. P.falciparum, C. P.Vivax, D. Leishmaniasis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. b (Plasmodium falciparum). (Ref. Harrison, Principle of Medicine, 18th ed./Chapter 210. Malaria)Black water fever is caused by Plasmodium falciparum. Bloody urine (hemoglobinuria) occurs as a complication of falciparum malaria infection. It results from destraction of RBCs & release of hemoglobin. It occurs most commonly in patients who have been treated with drugs derived from gunine. It is characterized by high fever, dark urine, epigastric pain, vomits, jaundice & shock. Hepatosplenomegaly occurs. Severe anemia is the hallmark & renal failure can ocur.', 'role': 'assistant'}]