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Is a high creatinine normal for the elderly? Understanding the complex link between age, muscle mass, and kidney health

While standard lab ranges might flag elevated creatinine, the interpretation is more complex for older adults. The concentration of serum creatinine increases with age, particularly after age 60, but this doesn't automatically mean kidney disease. A seemingly normal level in an older adult can even mask significant kidney function decline, making it crucial to ask, is a high creatinine normal for the elderly?