⚕️ For clinical reference only. Not a substitute for professional judgment.

NELA Preoperative Score Emergency Surgery

National Emergency Laparotomy Audit risk tool — predicts 30-day mortality for emergency abdominal surgery. NELA mandates risk documentation for all emergency laparotomies.

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Complete all parameters

Enter patient data to estimate 30-day mortality risk.

Patient Parameters

Age

years

ASA Grade

Urgency

Soiling

Malignancy

Physiology

Urea

mmol/L

Sodium

mmol/L

Potassium

mmol/L

GCS

/15

Risk Guidance

Risk <5%: Standard ward care post-op Risk 5–10%: HDU recommended Risk >10%: ICU strongly recommended + consultant present Risk >5%: Consultant surgeon + anaesthetist must be present NELA mandates risk documentation for all emergency laparotomies

References

Saunders DI et al. NELA — first patient report. RCoA. 2015.
NELA Project Team. Sixth patient report. 2021.