102 video review lessons. Review AP US History by watching and listening to over 18 hours worth of videos carefully coordinated to the AP US History syllabus. 290 AP US History practice questions. Test your understanding of each concept without having to take an entire AP US History practice exam. Customized AP US History study plan.
Treatment of iron deficiency is usually easily accomplished with oral iron supplementations. IN rare cases iron needs to be given intravenously, but this route risks serious allergic reactions and is avoided when possible. Lead poisoning is the next most common and one of the most serious causes of microcytic anemia. It needs to be suspected in any young child with microcytic anemia who does not respond quickly to iron supplementation, or who lives in a home with lead pain exposure. This is mostly older homes.
Therefore, if the increase in MCV is not related to macrocytic anemia, the mean cell hemoglobin concentration (MCHC) also increases in proportion. Causes of macrocytosis are many and range from benign to malignant; thus, a complete workup to determine etiology is essential.itamin B-12 deficiency is a cause of macrocytosis. Because DNA synthesis requires cyanocobalamin (vitamin B-12) as a cofactor, a deficiency of the vitamin leads to decreased DNA synthesis in the erythrocyte, thus resulting in macrocytosis.