By Medical Author:
Siamak T. Nabili,MD, MPH
Medical Editor:
William C. Shiel Jr., MD, FACP,FACR
Siamak T. Nabili,MD, MPH
Medical Editor:
William C. Shiel Jr., MD, FACP,FACR
What are normal hemoglobin values?
The hemoglobin
level is expressed as the amount of hemoglobin in grams (gm) per deciliter (dL)
of whole blood, a deciliter being 100 milliliters.
The normal
ranges for hemoglobin depend on the age and, beginning in adolescence, the
gender of the person. The normal ranges are:
- Newborns: 17 to 22 gm/dL
- One (1) week of age: 15 to 20 gm/dL
- One (1) month of age: 11 to 15gm/dL
- Children: 11 to 13 gm/dL
- Adult males: 14 to 18 gm/dL
- Adult women: 12 to 16 gm/dL
- Men after middle age: 12.4 to 14.9 gm/dL
- Women after middle age: 11.7 to 13.8 gm/dL
All
of these values may vary slightly between laboratories. Some laboratories do
not differentiate between adult and "after middle age" hemoglobin
values
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