Buzby NRI 1988 GNRI 2005 Onodera PNI CONUT Score NUTRIC Score

Nutritional Risk
Index Calculator.

Five validated nutritional indices in one clinical tool — Classic NRI · Geriatric NRI · Prognostic Nutritional Index · CONUT · PINI — with serial trend tracking, ICU NUTRIC score, weight-loss staging, and evidence-based intervention matrix.

🏥 ICU & Surgery Grade 📊 5 Validated Indices 📈 Trend Tracker 💊 Intervention Matrix 🎓 Thesis Ready
Buzby 1988 · Bouillanne 2005 · Onodera 1984
CONUT · PINI · NUTRIC Score
Weight-Loss Staging · Jensen JPEN 2012
ESPEN 2021 · ASPEN 2016 Intervention Rx

Patient Assessment

Anthropometrics + laboratory values → 5 nutritional risk indices

Rx
The NRI is the only nutritional index validated in a large RCT (VA Cooperative Study, n=395) to predict surgical complications and mortality. GNRI is preferred in elderly patients (≥65 years). PNI is validated in oncology and GI surgery.
1 Patient Demographics
yrs
cm
2 Weight Parameters *
If oedema present: use estimated dry weight (subtract ~1 kg mild / 3 kg moderate / 5 kg severe oedema). Ideal weight calculated automatically via Lorentz formula.
kg
kg
kg
3 Core Serum Proteins *
g/dL
mg/dL
mg/L
4 Extended Lab Panel (for CONUT, PNI, PINI)
/mm³
mg/dL
mg/dL
g/dL
mg/dL
g/dL
5 ICU / NUTRIC Score (for critically ill patients)
pts
pts
6 Clinical Context

Buzby 1988 · Bouillanne 2005 · Onodera 1984 · Ulíbarri 2005 · Ingenbleek 1985 · ESPEN 2021

NRI — NUTRITIONAL RISK INDEX
—
Buzby NRI Score
SevereModerateMildNormal
ENTER VALUES
Complete the form to calculate
Classic NRI
—
GNRI
—
PNI
—
CONUT
—
Alb —
Prealb —
CRP —
TLC —
⚖️
Enter weights above
NRI Serial Log
No readings logged yet

CLINICAL FEATURES

📊
5 Validated IndicesNRI · GNRI · PNI · CONUT · PINI side-by-side
🔬
Full Lab PanelAlbumin · prealbumin · CRP · TLC · cholesterol
⚖️
Weight StagingJensen 2012 — % loss by time period
🏥
NUTRIC ScoreICU nutritional risk with APACHE + SOFA
💊
Intervention MatrixOral → ONS → EN → PN decision support
📈
Serial Trend TrackerLog NRI over time, monitor response

FOR CLINICIANS

Clinical Nutrition
Consultation

Expert clinical dietitian assessment — personalised nutrition support plan, enteral formula selection, feeding route decision, and outcome monitoring.

Refer a Patient →

BASED ON

Buzby et al. 1988VA Cooperative Study — NRI validation
Bouillanne et al. 2005GNRI — geriatric NRI derivation
Onodera et al. 1984PNI — oncology/surgical validation
Heyland et al. 2011NUTRIC Score — ICU nutrition risk
ESPEN 2021 · ASPEN 2016ICU nutrition clinical guidelines

TRY ALSO

🔬
eGFR CalculatorCKD-EPI 2021 · KDIGO risk heatmap
 🥩
CKD Protein CalculatorLPD · VLPD · HD · PD · Transplant
 🥧
Macro CalculatorTDEE · 12 diet presets · cycling

⚕️ For clinical decision support only — not a substitute for full nutritional assessment by a qualified dietitian. Albumin is an acute-phase reactant and falls during inflammation independent of nutritional status — always interpret NRI alongside clinical context, CRP, and weight history. GNRI preferred in elderly patients. PNI validated in oncology and GI surgery settings. NUTRIC Score requires ICU admission context. Buzby 1988 · Bouillanne 2005 · ESPEN 2021.