I am 24 years oldCOLOR: hay,Appearance:TRANSPARENt SPECIFIC GRAVITY: 1.010 SUGAR: negative ALBUMIN: trace Pus Cells: 0-1 hpf RBC: absent, Epithelial Cells:present, Mucus Threads: present, Crystals:absent,Casts:Absent.please explain me what it means.thank you.