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.
An MCV above 100 fL is called macrocytosis. When anemia (low red blood cell count) is also present, itâs called a macrocytic anemia. Causes of macrocytic anemia include deficiency of B12 or folic acid, medication side effects, alcohol abuse, and certain blood cancers.