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Hemoglobin
Overview
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Overview
Hemoglobin (Hb) is the red blood pigment of the erythrocytes. It is the major carrier of the iron contained in the body (approx. 70 %). The function of hemoglobin is to transport oxygen from the lungs to the tissues, and the carbon dioxide produced by metabolism from the tissues back to the lungs. Decreased levels of hemoglobin together with hematocrit and red blood cell count indicate anemia, so screening the hemoglobin value is useful for the diagnosis of anemia, the assessment of the course of disease and response to treatment. Increased levels of hemoglobin refer to polyglobulism and polycythemia.
The WHO defines anemia as hemoglobin values below 12 g/dl (7.5 mmol/l) in women and below 13 g/dl (8.1 mmol/l) in men. But a hemoglobin value within the normal range is not evidence enough to exclude anemia with certainty. In addition the diagnosis has to be based on case history, clinical examination and laboratory results.
Hemoglobin can be determined in the physician's office directly with the Reflotron® systems using Reflotron® Hemoglobin. Samples can be fresh capillary blood or heparinized or EDTA blood.
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