🥗 Nutritional Risk Index (NRI)
UseWhen to use: perioperative / inpatient nutrition risk when albumin and weights known.
Strata≥100 none; 97.5–99.9 mild; 83.5–97.4 moderate; <83.5 severe risk band.
LimitsWhen not to use: when albumin falls from acute inflammation alone wit… · Pitfall: unknown usual weight. · Pair with NRS-2002/MUST.
SourceBuzby GP et al. NRI
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — 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
Albumin + weight ratio.
When to use
When to use: perioperative / inpatient nutrition risk when albumin and weights known.
How it works
NRI=1.519×albumin(g/L)+41.7×(current/usual weight).
Key points
- Albumin + weight ratio.
- 83.5 / 97.5 / 100 bands.
- Next: dietitian / prehab.
References
- Buzby GP et al. NRI
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 albumin | 3.5 g/dL |
|---|---|
| Current weight | 60 kg |
| Usual weight | 70 kg |
→NRI88.9
- Band：83.5–97.4 — moderate malnutrition risk
- Weight ratio：0.857
Verification & sources · governance
FAQ
Frequently asked questions
- Does Nutritional Risk Index (NRI) 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 Nutritional Risk Index (NRI) calculated in practice? Can you show a worked example?
- Inputs: Serum albumin 3.5 g/dL, Current weight 60 kg, Usual weight 70 kg → Result: NRI 88.9（Band: 83.5–97.4 — moderate malnutrition risk, Weight ratio: 0.857）