<prompt> A child presents with complaints of oliguria, abdominal distension and diarrhoea. On examination there is deep jaundice. Hepatomegaly was present measuring 4 cm below the costal margin. Conjugated bilirubin in blood was 38 mgdL, and there was urine urobilinogen and bile pigments. Hemoglobin was 4mgdL and serum creatinine was 3mgdL. Which of the following tests is of least impoance to diagnose this case -G-6-PD level in bloodSerum ceruloplasminReticulocyte countLeptospiral antibody level  <response>: Ans. is b i.e., Serum ceruloplasmin level o Serum ceruloplasmin measurement is useful in the diagnosis of Wilsons disease, but Wilsons disease in the above patient can easily be ruled out because in Wilsons disease there is no renal involvement, where as the patient in question is having renal involvement Serum Creatinine 3 mgdL. o Lepto spiral antibody level Leptospiral antibody measurement is useful in the diagnosis of leptospirosis. o The symptomatic profile of the patient is very similar to that of severe leptospirosis Weils syndrome. CF of Weils syndrome o Jaundice o Hemorrhagic diathesis o Hepatomegaly o Spleenomegaly o Hemolysis o Rhabdomyolysis o Congestive hea failure o Pulmonary involvement o Renal failure During 2nd wk. 