Definition Transfusion reactions can be broadly categorized into three categories: Hemolytic, Delayed Hemolytic, and Nonhemolytic transfusion reactions. Typical signs and symptoms of a hemolytic transfusion reaction include chest and flank pain, nausea, and chills. These can be masked while under general anesthesia and so, more useful indicators include fever, hypotension, or red colored urine (a […]