Urinalysis is significant for occult blood (1+) with microscopy showing 10-20 RBCs per 400x magnification.

Occult blood in urine is often said as the occult blood +, which means there are 10 red blood cells which is observed under the high-power microscope. And 20 red blood cells in urine means occult blood + +. If a kidney disease patient finds their urine test has +, it means their kidney inherent cells have been damaged, and the filtration function of kidneys has been damaged by the immune medium complexes.