Hemoglobin

HEMOGLOBIN

Hemoglobin is contained within the red blood cells (erythrocytes), giving blood its characteristic color. It serves to transport oxygen from the lungs to the tissues. The concentration of hemoglobin is easily measured by diluting blood in an appropriate solution and measuring in an electronic instrument how much light is absorbed when it is passed through this solution. In the condition called anemia, the amount of hemoglobin in the blood is diminished; in polycythemia, it is increased.

ERNEST BEUTLER

(SEE ALSO: Hemoglobinopathies; Iron)