RT Book, Section A1 Billet, Michael A1 Hemphill, Robin R. A2 Tintinalli, Judith E. A2 Ma, O. John A2 Yealy, Donald M. A2 Meckler, Garth D. A2 Stapczynski, J. Stephan A2 Cline, David M. A2 Thomas, Stephen H. SR Print(0) ID 1166812447 T1 Anemia and Polycythemia T2 Tintinalli's Emergency Medicine: A Comprehensive Study Guide, 9e YR 2020 FD 2020 PB McGraw-Hill Education PP New York, NY SN 9781260019933 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1166812447 RD 2024/04/19 AB Anemia is a common medical problem, affecting approximately one quarter of the world’s population, especially children, pregnant and premenopausal women, the elderly, and the chronically ill.1-4 Anemia is not so much a disease as a sign or symptom. There are three broad causes of anemia: (1) blood loss, (2) decreased red blood cell production, and (3) increased red blood cell (RBC) destruction.