Modified Glasgow Imrie Severity Criteria for Acute Pancreatitis

Predict outcome in acute pancreatitis

The global unit selector only affects unanswered questions
1.Pa0₂ <8 kPa (<60 mmHg)?
2.Age >55 years?
3.WBC >15x10⁹/L?
4.Calcium <2mmol/L (<8 mg/dL)?
5.Urea >16 mmol/L or BUN >45 mg/dL?
6.AST >200  U/L or Lactate Dehydrogenase (LDH) >600 U/L?
7.Albumin <32g/L (<3.2 g/dL)?
8.Blood Glucose >10 mmol/L (>180 mg/dL)?
Created by

1. Pa0₂ <8 kPa (<60 mmHg)?

Created by
0/8 completed

About this Calculator

The Glasgow Imrie score is a modification of the Ranson's criteria for acute pancreatitis. It was originally composed of 9 factors however this was subsequently reduced to 8 components due to a superior predictive value. Three or more positive criteria, on the basis of bloods taken on admission and repeated within 48 hours, is indicative of severe pancreatitis and may require transfer to a higher acuity unit.

A score is determined by assigning one point for each of the criteria outlined below.

Variable & Associated Points

  • PaO2 <8kPa | +1
  • Age >55yrs | +1
  • WBC >15x10^9/L | +1
  • Calcium <2mmol/L | +1
  • Urea >16mmol/L | +1
  • LDH >600iU/L or AST >200iU/L | +1
  • Albumin <32g/L | +1
  • Blood Glucose >10mmol/L | +1

Points assignment correspond to the following risk classes:

  • <3 points: mild/moderate pancreatitis
  • 3 or more points: severe pancreatitis


Imrie CW.

Prognosis of acute pancreatitis.

Annali Italiani di Chirurgia 1995, 66 (2): 187-9

Moore EM.

A useful mnemonic for severity stratification in acute pancreatitis.

Annals of the Royal College of Surgeons of England 2000, 82 (1): 16-7

Curated and submitted by Dr. Ronan Cusack

Contributed By:
  • Curated and submitted by Dr. Ronan Cusack
Legal Notices and Disclaimer

© 2020 QxMD Software Inc., all rights reserved. No part of this service may be reproduced in any way without express written consent of QxMD. This information should not be used for the diagnosis or treatment of any health problem or disease. This information is not intended to replace clinical judgment or guide individual patient care in any manner. Click here for full notice and disclaimer.