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.
The most common causes of megaloblastic, macrocytic anemia are deficiency or defective utilization of vitamin B 12 or folate. Do CBC, RBC indices, reticulocyte count, and peripheral smear; do vitamin B 12 and folate levels in patients with characteristic findings. Treat the cause.he most common causes of megaloblastic, macrocytic anemia are deficiency or defective utilization of vitamin B 12 or folate. Do CBC, RBC indices, reticulocyte count, and peripheral smear; do vitamin B 12 and folate levels in patients with characteristic findings. Treat the cause.