What is a chemistry test to evaluate kidney function?

The most common chemistry test used to evaluate kidney function is the measurement of serum creatinine. Creatinine is a waste product that is produced by the muscles and is filtered out of the blood by the kidneys. If the kidneys are not functioning properly, the level of creatinine in the blood will increase.

Other chemistry tests that can be used to evaluate kidney function include:

* Blood urea nitrogen (BUN): BUN is another waste product that is produced by the breakdown of protein. Like creatinine, BUN is filtered out of the blood by the kidneys. An elevated BUN level can indicate kidney dysfunction.

* Glomerular filtration rate (GFR): The GFR is a measure of how well the kidneys are filtering waste products from the blood. The GFR is calculated using the levels of creatinine and BUN in the blood, as well as the patient's age, gender, and race.

* Electrolytes: Electrolytes are minerals that are important for the proper functioning of the body's cells. Electrolytes that can be measured in the blood include sodium, potassium, chloride, and bicarbonate. Abnormal levels of electrolytes can indicate kidney dysfunction.

* Uric acid: Uric acid is a waste product that is produced by the breakdown of purines. Purines are found in certain foods, such as red meat, poultry, and seafood. An elevated uric acid level can indicate kidney dysfunction.

These are just a few of the chemistry tests that can be used to evaluate kidney function. The specific tests that are ordered will depend on the patient's individual situation.