Total iron deficit (Ganzoni)
Total IV iron needed to correct hemoglobin and replete stores.
Inputs
1 of 3Actual (total) body weight
Patient values are shared with every calculator.
When to use
- Planning a total IV iron course for iron-deficiency anemia.
Pearls and pitfalls
- Each IV product has its own maximum single dose and total course on its label.
- Use ideal or lean weight in obesity; many references cap weight at 90 kg.
- Not for anemia without iron deficiency.
Why use
The standard way to size a full IV iron course.
Iron (mg) = weight × (target Hb − actual Hb) × 2.4 + stores (500 mg, or 15 mg/kg if under 35 kg)