HLTH 335 Lecture Notes - Lecture 21: Iron-Deficiency Anemia, Malabsorption, Hemoglobin
26 Oct 2018
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Human diseases - hlth 335 - exam 2 notes. Increased iron requirements (e. g. pregnancy, adolescent growth spurts) Without enough iron, the body fails to synthesize hemoglobin, and the ability to transport oxygen is reduced. Sudden growth spurt in adolescent boys may significantly increase physiological demands for iron resulting in iron deficiency anemia. Adolescent girls may become iron deficient due to inadequate dietary iron, increased growth requirements, and onset of menstruation. Supplemental iron is needed during pregnancy as iron is provided to the developing fetus. Decreases in iron absorption occur with malabsorption syndromes and chronic disease. Iron absorption requires an intact gi tract with healthy intestinal mucosal cells. Chronic disease, removal of stomach, and bowel disorders limit availability of iron required for synthesis of hemoglobin. Symptoms and diagnosis of iron deficiency anemia. Diagnosis of iron deficiency anemia is confirmed by microscopic examination of blood. Identify and correct any cause of bleeding. Oral supplements are effective in those with intact gi tracts.
