DEFINITION More than three red blood cells are found in centrifuged urine per high-power field microscopy (>3 RBC/HP) Normal urine. no red blood cell or less than three red blood celllDEFINITION More than three red blood cells are found in centrifuged urine per high-power field microscopy ( > 3 RBC/HP). Normal urine: no red blood cell or less than three red blood cell