The estimated glomerular filtration rate (eGFR) is a test used to assess kidney function by estimating how well the kidneys filter blood. It is calculated using a formula that takes into account factors such as serum creatinine levels, age, gender, and race, providing a standardized measure of kidney function. Understanding eGFR is crucial for managing patients with chronic kidney disease (CKD) and tailoring dietary approaches based on their stage of kidney function.
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