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Hemoglobin Levels (cont.)

What are normal hemoglobin values?

Normal hemoglobin values are related to the person's age and sex. Normal values may vary slightly between test systems, and which groups of doctors have determined "normal values" for their group of patients; however, the value ranges are close (vary by about 0.5 g/dl) for almost every group. An example of normal ranges that is widely accepted by Family Practice physicians is as follows:

  • Birth: 13.5 to 24.0 g/dl (mean 16.5 g/dl)
  • Age <1 month: 10.0 to 20.0 g/dl (mean 13.9 g/dl)
  • Age 1-2 months: 10.0 to 18.0 g/dl (mean 11.2 g/dl)
  • Age 2-6 months: 9.5 to 14.0 g/dl (mean 12.6 g/dl)
  • Age 0.5 to 2 years: 10.5 to 13.5 g/dl (mean 12.0 g/dl)
  • Age 2 to 6 years: 11.5 to 13.5 g/dl (mean 12.5 g/dl)
  • Age 6-12 years: 11.5 to 15.5 g/dl (mean 13.5)
  • Female
    • Age 12-18 years: 12.0 to 16.0 g/dl (mean 14.0 g/dl)
    • Age >18 years: 12.1 to 15.1 g/dl (mean 14.0 g/dl)
  • Male
    • Age 12-18 years: 13.0 to 16.0 g/dl (mean 14.5 g/dl)
    • Age >18 years: 13.6 to 17.7 g/dl (mean 15.5 g/dl)

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