Normal Urine Creatinine Levels for a 58-Year-Old Male

For a 58-year-old male, typical 24-hour urine creatinine excretion is 1.2–1.8 g/day (1200–1800 mg/day).

Key Points

• Creatinine excretion correlates with muscle mass; men generally have higher levels than women.
• Levels decline with age due to sarcopenia.
• Diet (meat intake), hydration, and kidney function also influence values.
• Spot urine creatinine concentration varies widely; 24-hour collection is gold standard for quantitative assessment.

Reference ranges vary by lab. Always interpret results in clinical context with your healthcare provider.