Hi Doc,my son who is5 years old just had his urinalysis test awhile ago. The results are as follows: Color:Yellow,Reaction:Acidic,Albumin: Negative,Appearance:Yellow,Sp.Gravity: 1.005,Sugar:Negative, PUS cells: 1-3 / hpf, Red cells:0-2 / hpf, Epithelial cells: ++ , Mucus Thread: rare, Crystals A. urates : rare..What does it mean?thank you.