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.
In fact the most common cause of microcytic anemia is iron deficiency, and in low risk patients physicians often confirm the diagnosis of iron deficiency as the cause by a good response to iron therapy.
B12 deficiency. When iron deficiency is diagnosed as the cause of a petientâs microcytic anemia, the most important task is to discover why the patient is iron deficient. The cause can be either poor intake or absorption of iron from the diet, or loss of iron in blood cells lost from apparent or occult bleeding.