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Urine specific gravity test. Urine specific gravity is a laboratory test that shows the concentration of all chemical particles in the urine. After you provide a urine sample, it is tested right away. The health care provider uses a dipstick made with a color-sensitive pad. The color the dipstick changes to will tell the provider the specific gravity of your urine. The dipstick test gives only a rough result. For a more accurate result, your provider may send your urine sample to a lab. Your provider will ask you to temporarily stop taking any medicines that may affect the test results.
Tweet. In clinical pathology, urine specific gravity is a measure or urinalysis parameter that is often used to evaluate kidney function and can help in the identification of a variety of renal diseases.The urine specific gravity test is also commonly referred to as a urine density test.Like the osmolality test, which is a lot more specific, this test identifies urine concentration, but it is a lot easier and more convenient to use.he urine specific gravity test is also commonly referred to as a urine density test. Like the osmolality test, which is a lot more specific, this test identifies urine concentration, but it is a lot easier and more convenient to use.