Urine analysis is also known as urinalysis. The specific gravity in a urinalysis is directly proportional to urine osmolality, that is, solute concentration. It can also be said to be the ability of the kidney to determine how concentrated the urine is in relation to plasma. Normal specific gravity is usually between 1.002 and 1.035 on a random sample. One factor that can cause it to become higher than the normal range is very high levels of glucose. Other causes of it deviating from the normal range include diabetes, mellitus, various forms of glomerulonephritis, and chronic urinary tract infections.
