Creatinine

Creatinine is a waste product generated when your muscles use energy. Your kidneys filter creatinine from your blood and eliminate it through urine. Measuring creatinine levels in the blood or urine helps assess how well your kidneys are functioning. Elevated levels may indicate that the kidneys are not filtering properly, which can be a sign of kidney disease or damage. Because creatinine levels are influenced by muscle mass and other factors, doctors consider these aspects alongside other tests to evaluate kidney health accurately.