🩸 Transferrin Saturation (TSAT)
UseEvaluate iron deficiency and overload, including in CKD.
Loading calculator…
SourceStandard iron-study references
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.
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
Interpret alongside ferritin.
When to use
Evaluate iron deficiency and overload, including in CKD.
How it works
TSAT = serum iron / TIBC × 100. < 20% suggests deficiency; > 45% suggests overload.
Key points
- Interpret alongside ferritin.
- In CKD, TSAT ≤ 20% with appropriate ferritin suggests iron deficiency.
- High TSAT may indicate haemochromatosis.
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.
| Serum iron | 60 µg/dL |
|---|---|
| TIBC | 300 µg/dL |
→TSAT20%
- Interpretation：Normal (20–45%)
- Formula：serum iron / TIBC × 100
Verification & sources · governance
FAQ
Frequently asked questions
- What are the limits and cautions when using Transferrin Saturation (TSAT)?
- 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 Transferrin Saturation (TSAT) 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 Transferrin Saturation (TSAT) calculated in practice? Can you show a worked example?
- Inputs: Serum iron 60 µg/dL, TIBC 300 µg/dL → Result: TSAT 20 %（Interpretation: Normal (20–45%), Formula: serum iron / TIBC × 100）