This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nephrotic and Nephritic syndrome, Subject name: Medicine
[{'content': 'All are true about Hemolytic uremic syndrome except? \nSelect and explain. \nA. Uremia, B. Hypofibrinogenemia, C. Thrombocytopenia, D. Positive Coombs test', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Positive Coombs test is seen with autoimmune hemolytic anemia but in H.U.S microangiopathic hemolytic anemia is seen. The entrapment of platelets in micro-thrombi formed in small blood vessels leads to thrombocytopenia. The consumption of clotting factors due to initiation of coagulation cascade leads to hypofibrinogenemia. Hemolytic uremic syndrome- characterized by the triad of microangiopathic hemolytic anemia, thrombocytopenia, and acute renal failure which explains uremia.', 'role': 'assistant'}]