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: Medicine
Microangiopathic hemolytic anemia is associated with: March 2005 
Select and explain. 
A. Diabetes Mellitus, B. Vitamin B12 deficiency, C. Hemolytic uremic syndrome, D. All of the above
C: Hemolytic uremic syndrome
Answer: C: Hemolytic uremic syndrome 
Explanation: Ans. C: Hemolytic uremic syndrome Mechanism of HUS -RBCs damaged by injured vessel endothelium HUS is microangiopathic hemolytic anemia with fragmented RBC's in peripheral blood smear, thrombocytopenia and acute renal failure Infection is the triggering factor and if associated indicates a poor prognosis