Home › Clinical Tools › Iron deficit

🩸 Iron Deficit (Ganzoni Formula)

UsePlan iron replacement (especially intravenous) in iron-deficiency anaemia.

Loading calculator…

SourceGanzoni AM. Schweiz Med Wochenschr 1970

Runs locally in your browser (no PHI uploaded). For licensed clinicians — not a substitute for clinical judgement.
Stored on this device for revisit reminders

This-shift next steps

After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.

Scene next step
📋hematologyOpen scene pack →
Related scores
Matching pathway
🧭febrile_neutropeniaOpen pathway →
Score + version; reference only — not a substitute for care · no HIS write

Paste the link in Slack, Teams, X, or LinkedIn — the preview image comes from this page’s Open Graph card.

Methodology · worked example, guidelines & full notes
Clinical takeaway

Includes correction of anaemia plus replenishment of stores.

When to use

Plan iron replacement (especially intravenous) in iron-deficiency anaemia.

How it works

Deficit (mg) = weight × (target − actual Hb) × 2.4 + iron stores (500 mg). Below 35 kg: target Hb 13 g/dL and stores 15 mg/kg (Venofer SmPC, UK).

Key points

  • Includes correction of anaemia plus replenishment of stores.
  • Dose IV iron per the chosen product's label.
  • Recheck iron studies after replacement.

References

Worked calculation

The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.

Weight70 kg
Current haemoglobin9 g/dL
Target haemoglobin15 g/dL

→Total iron deficit1508mg

  • Iron stores added：500 mg (500 mg)
  • Formula：weight × (target − actual Hb) × 2.4 + stores
Verification & sources · governance
FAQ

Frequently asked questions

What are the limits and cautions when using Iron Deficit (Ganzoni Formula)?
For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
Does Iron Deficit (Ganzoni Formula) upload patient data? Where is it calculated?
Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
How is Iron Deficit (Ganzoni Formula) calculated in practice? Can you show a worked example?
Inputs: Weight 70 kg, Current haemoglobin 9 g/dL, Target haemoglobin 15 g/dL → Result: Total iron deficit 1508 mg（Iron stores added: 500 mg (500 mg), Formula: weight × (target − actual Hb) × 2.4 + stores）
Related tools

Other tools