Unfortunately, this is a question that you must ask a physician. Each lab may have their own "normal" range. Here is an example of one lab's urinalysis results:
"Abnormal findings would include more than 0-2 red blood cells, more than 0-2 white blood cells, crystals, casts , renal tubular cells or bacteria. (Bacteria can be present if there was contamination at the time of collection.)"