Widal: salmonella typhi o . Salmonella typhi H . Salmonella typhi AH and BH . Aappearence: clear , colour : pale yellow , albumin : nil ,sugar : nil, micro : ,pus cells : 4-6/HPF ,RBC : nil , epithelial cells : 4-6 , casts/crystals : nil , bacteria: nil, other is : nil .