About HUS all are true except -: (A) Most commonly caused by verocytotoxic Coli, (B) Causes mild to severe coombs positive hemolytic anemia, (C) Recurrences rare, (D) Transient thrombocytopenia
Answer is B. Ans. (b) Causes mild to severe coombs positive hemolytic anemia(Ref: Robbins 9th/pg 942-943; 8th/pg 952-953)Typical HUS gives rise to coombs negative hemolytic anemia because autoantibodies are absent; HUS & TTP have been explained in detail in the chapter 12 on Bleeding disorders.