🥗 PONS (Perioperative Nutrition Screen)
UseWhen to use: pre-op clinics before major elective surgery.
Strata≥1 = nutrition risk → dietitian / prehabilitation pathway.
LimitsWhen not to use: emergency surgery delaying all screens. · Pitfall: albumin as pure malnutrition label. · Not a sole case cancellation.
SourcePONS perioperative nutrition screen (ASER / POQI)
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
Four items.
When to use
When to use: pre-op clinics before major elective surgery.
How it works
+1 each: low BMI (age-specific), >10% weight loss/6 mo, <50% intake/week, albumin <3.0 g/dL.
Key points
- Four items.
- Any ≥1 positive.
- Next: ONS / dietitian.
References
- PONS perioperative nutrition screen (ASER / POQI)
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.
| Age >65 years (BMI threshold) | ≤65 (BMI cut <18.5) |
|---|---|
| BMI | 22 kg/m² |
| Unintentional weight loss >10% in 6 months | No (0) |
| Eating <50% of normal diet in past week | No (0) |
| Serum albumin <3.0 g/dL | No / unknown (0) |
→PONS0/4
- BMI points：0
- Cue：0 — screen negative; continue standard perioperative nutrition
| Age >65 years (BMI threshold) | >65 (BMI cut <20) |
|---|---|
| BMI | 22 kg/m² |
| Unintentional weight loss >10% in 6 months | Yes (+1) |
| Eating <50% of normal diet in past week | Yes (+1) |
| Serum albumin <3.0 g/dL | Yes (+1) |
→PONS3/4
- BMI points：0
- Cue：≥1 — nutrition risk; refer for assessment / optimization
Verification & sources · governance
FAQ
Frequently asked questions
- Does PONS (Perioperative Nutrition Screen) 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 PONS (Perioperative Nutrition Screen) calculated in practice? Can you show a worked example?
- Inputs: Age >65 years (BMI threshold) ≤65 (BMI cut <18.5), BMI 22 kg/m², Unintentional weight loss >10% in 6 months No (0), Eating <50% of normal diet in past week No (0), Serum albumin <3.0 g/dL No / unknown (0) → Result: PONS 0 /4（BMI points: 0, Cue: 0 — screen negative; continue standard perioperative nutrition） Inputs: Age >65 years (BMI threshold) >65 (BMI cut <20), BMI 22 kg/m², Unintentional weight loss >10% in 6 months Yes (+1), Eating <50% of normal diet in past week Yes (+1), Serum albumin <3.0 g/dL Yes (+1) → Result: PONS 3 /4（BMI points: 0, Cue: ≥1 — nutrition risk; refer for assessment / optimization）