Iron-deficiency anemia

From IDWiki

Epidemiology

  • 5% of non-pregnant American women, 3-7% in the elderly

Etiology

  • Loss
    • GI bleed
    • Increased requirements: pregnancy, post-bleeding recovery, use of Epo
  • Poor intake
    • Inadequate absoprtion
    • Inflammatory bowel dz, Celiac dz
    • something else

Investigations

  • Microcytic anemia
  • Ferritin <30

Management

Iron supplementation

  • Oral
    • Ferrous sulfate 300mg (60mg elemental)
    • Ferrous fumarate 300 (100mg elemental, covered by ODB)
    • Ferramax
    • Proferrin (heme iron)
    • Take on empty stomach with ascorbic acid, without calcium-containing products
    • Start daily, then titrate up to TID
    • Side effects: stomach upset, constipation, diarrhea
  • Parenteral
    • If oral iron intoleratble
    • Moderate or severe anemia with Hb <90
    • Retics within a week
    • Iron sucrose 300mg IV over 2 hours
    • Contraindicated in active infection
    • Rare anaphylaxis, hypotension