A 10 months old female child with c/o fever on & off with cough since 15 days with loose stool watery in nature, 3 to 5 times a day grewnish colour, since 5 days with abdomenal distension, since 2 days with anasaca, since 1 day O/E pallor++ hepatomegale 5 cm soft spleenomegale 3 cm soft reports CBC tlc 12600, hb 8.7,HCT 27.9, N 28% L 68% , E 04% Platelet 1.57 , CRP 14, Na 145, k 4.23 , serum creat 2.6 Urea 70 Usg abdo bilatral renal cortical grade 2/3 nephropathy with minimal ascites. What is the differential diagnosis?
What is the other laboratory test should be done?
