Serum Creatinine

Serum Creatinine is a blood test that measures the concentration of creatinine, a waste product produced by muscle metabolism, in the blood. The kidneys normally filter creatinine out of the blood, and elevated levels can indicate impaired kidney function or kidney disease. This test is commonly used to assess how well the kidneys are working, particularly when other symptoms of kidney dysfunction are present, such as swelling, high blood pressure, or changes in urine output. Serum creatinine levels are typically higher in men due to higher muscle mass, and the results can be used alongside other tests, such as glomerular filtration rate (GFR), to estimate kidney health and function.