symptoms of anemia
The symptoms of anemia can include headache, fatigue, weakness, difficulty in thinking. With severe anemia, other symptoms, such as shortness of breath and rapid heartbeat, may be experienced.
At what point are people considered anemic?
This varies with gender and age. Both hemoglobin and hematocrit values are used to define anemia. These laboratory values are obtained from a CBC (complete blood count) test, performed at a doctor's office. The normal range of hemoglobin values is 14.0 g/dL to 17.4 g/dL for adult men and 12.3 g/dL to 15.3 g/dL for nonpregnant women. The World Health Organization defines anemia as less than 12 g/dL for nonpregnant women and less than 13 g/dL for men. The normal average hematocrit for adult males is 46%, and the range is 40% to 52%. For adult females, the normal average hematocrit is 41%, and the range is 35% to 47%. Values that fall below the lower limits can indicate anemia and deserve medical thought and further testing.
symtoms of anemia are readily evident at hemoglobin levels of less than 10g/dl. iron deficiency anemia is the most common form of anemia.
in the absence of nutritional deficiency or an obvious source of blood loss, gastrointestinal tract pathology should be investigated as a cause of iron deficiency anemia.
other causes of anemia include chronic diseaserenal failure,hemolysis, bone marrow disorders,and vitamin deficiecies.
laboratory evaluation is importatn in diffrentiating underlyng causes of anemia .
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