The following are causes of hematuria in childhood except: (A) Alpo's syndrome, (B) E. coli 0157, (C) Factor V Leiden deficiency, (D) Alpha thalassemia
Answer is D. Haemolytic uraemia syndrome may be triggered by E.coli 0157. Factor V leiden deficiency is present in up to 10% of the Caucasian population and results in a pro-coagulation tendency, which in turn may lead to renal thrombosis and haematuria.