[Yaadein_Meri] Great INFO abt Hemoglobin (Red Blood Cells)

What is hemoglobin?

Hemoglobin is the protein molecule in red blood cells that carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the lungs.

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.