<prompt> Which of the following statements about Acute Hemolytic blood transfusion reactions is true:Complement mediated Hemolysis is seenType III Hypersensitivity is responsible for most casesrarely life threateningRenal blood flow is always mainatained  <response>: Answer is A Complement mediated Hemolysis is seen Acute Hemolytic Transfusion reactions following Blood transfusion are Type II hypersensitivity reactions caused most often by complement mediated hemolysis. These reactions are often life threatening and complications include Oliguria and acute renal failure decreased renal blood flow. Treatment involves immediate termination of transfusion. 