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.
Macrocytic anemia can be broken into two main types: megaloblastic and nonmegaloblastic macrocytic anemias. Megaloblastic macrocytic anemia. Most macrocytic anemias are also megaloblastic. Megaloblastic anemia is a result of errors in your red blood cell DNA production. This causes your body to make red blood cells incorrectly. Possible causes include: vitamin B-12 deficiency; folate deficiency; some medications, such as chemotherapy drugs like hydroxyurea, antiseizure medications, and antiretroviral drugs used for people with HIV; Nonmegaloblastic macrocytic anemia . Nonmegaloblastic forms of macrocytic anemia may be caused by a variety of factors. These can include: chronic alcohol use disorder (alcoholism) liver disease; hypothyroidism