You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A 12 year old boy had severe vomiting and diarrhoea. He was brought to the hospital bacause of severe oliguria. He was given IV fluids and furosemide without any diuresis. Blood beichemistry revealed : Urea 120 mg% and serum creatinine 4 mg%. The most likely diagnosis is - and explain in detail?
Ans. is 'b' i.e., Hemolytic uremic syndrome