Renal Function Test


A kidney function test, also known as a renal function test, is a medical examination that measures how well your kidneys are functioning. There are several different tests that can be performed to assess kidney function, including:

Blood urea nitrogen (BUN) test: This test measures the amount of urea nitrogen in your blood. Urea is a waste product that is created when your body breaks down proteins. If your kidneys are not functioning properly, the level of urea nitrogen in your blood can rise.

Serum creatinine test: This test measures the level of creatinine in your blood. Creatinine is a waste product that is created when your muscles use energy. The kidneys filter creatinine out of your blood and excrete it in your urine. If your kidneys are not functioning properly, the level of creatinine in your blood can rise.

Glomerular filtration rate (GFR) test: This test measures how much blood your kidneys filter per minute. A GFR below 60 mL/min/1.73 m² may indicate kidney disease.

Urine albumin test: This test measures the amount of albumin (a protein) in your urine. If your kidneys are not functioning properly, albumin can leak into your urine.

Urine creatinine test: This test measures the amount of creatinine in your urine. The ratio of urine creatinine to blood creatinine can be used to estimate your GFR.

Your healthcare provider may recommend one or more of these tests to assess your kidney function. Depending on the results, they may recommend further testing or treatment. It's important to regularly monitor your kidney function, especially if you have risk factors for kidney disease, such as high blood pressure, diabetes, or a family history of kidney disease.

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