RT Book, Section A1 Damon, Lloyd E. A1 Andreadis, Charalambos Babis A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1184165585 T1 Iron Deficiency Anemia T2 Current Medical Diagnosis & Treatment 2022 YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264269389 LK accessmedicine.mhmedical.com/content.aspx?aid=1184165585 RD 2023/02/07 AB ESSENTIALS OF DIAGNOSISIron deficiency: serum ferritin is < 12 ng/mL (27 pmol/L) or < 30 ng/mL (67 pmol/L) if also anemic.Caused by bleeding unless proved otherwise.Responds to iron therapy.