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Urine Analysis for Kidney Disease

Kidney disease results in impaired kidney function, which allows dangerous waste products to build up in the blood. Urine analysis (urinalysis) is used to determine how well the kidneys are functioning so proper treatment can be given.

  1. Test

    • Microalbumin is a small molecule that leaks from the kidneys into the urine in the beginning stages of kidney disease. Protein molecules are larger, so they do not leak into the urine until kidney damage has progressed. Urinalysis tests levels of these substances so doctors can determine how well the kidneys are functioning.

    Procedure

    • Urine is collected in a plastic cup and sent to a laboratory for analysis. Laboratory professionals analyze the sample to determine how much microalbumin and protein are present.

    Results

    • Elevated microalbumin and protein levels indicate that kidney function is compromised. High levels of protein in the urine indicate advanced kidney disease. Normal levels of microalbumin and protein mean that kidney function is normal.

    Benefits

    • The urinalysis is non-invasive and easy for most patients to complete. Results are available quickly, which makes it easier for doctors to make treatment decisions.

    Considerations

    • Drink a lot of water or refrain from emptying your bladder until you arrive at the laboratory and are able to complete the urine collection process.

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