What is the role of serum iron studies in the evaluation of inflammatory bowel disease (IBD)?

Updated: Apr 10, 2020
  • Author: William A Rowe, MD; Chief Editor: BS Anand, MD  more...
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Serum iron studies should be obtained at the time of diagnosis, because active IBD is a source for GI blood loss, making iron deficiency common. A microcytic hypochromic anemia suggests iron deficiency; if confirmed with serum iron/total iron-binding capacity (TIBC), iron should be replaced either enterally or parenterally. For parenteral replacement, intravenous (IV) iron sucrose can be used, and dosing is based on the table in the package insert, with a maximum of 30 mL (1500 mg) at once.

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