What does the GFR test for on Comprehensive Metabolic Panel?

The GFR test in a comprehensive metabolic panel (CMP) estimates the glomerular filtration rate (GFR), which measures the rate at which the kidneys clear creatinine from the blood.

Creatinine is a waste product produced by muscle metabolism, and its levels in the blood are influenced by the efficiency of the kidneys in filtering and removing it.

- A high GFR indicates efficient kidney function and rapid creatinine clearance.

- A low GFR, on the other hand, suggests impaired kidney function and reduced clearance of creatinine.

The GFR is calculated using various formulas based on factors such as age, sex, race, and serum creatinine levels.

The GFR result in a CMP can provide valuable insights into kidney function, helping healthcare professionals assess overall kidney health and detect any potential kidney disease or dysfunction. It is often used in conjunction with other tests within the CMP to evaluate overall metabolic health and identify any abnormalities.