Haematology · Internal Medicine

Ganzoni Equation for Iron Deficit calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Body weight

Allowed range: 44.09–440.92 lb

Actual hemoglobin

g/dL

Allowed range: 3–16 g/dL

Target hemoglobin

g/dL

Allowed range: 7–16 g/dL

Iron stores to replace

Allowed range: 0–1000 mg

Result

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Clinical inputs

Body weight (kg)Accepted range: 20 to 200
Actual hemoglobin (g/dL)Accepted range: 3 to 16
Target hemoglobin (g/dL)Accepted range: 7 to 16
Iron stores to replace (mg)Accepted range: 0 to 1000

Primary source

Ganzoni AM. Intravenous iron-dextran: therapeutic and experimental possibilities. Schweiz Med Wochenschr. PMID: 5413918. Scope: iron deficit (mg) = weight(kg) × (target Hb - actual Hb)(g/dL) × 2.4 + stores (often 500 mg). (1970)

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