Ranson criteria

A.Prof Frank Gaillard et al.

Ranson's criteria are useful in assessing prognosis in early acute pancreatitis. The more of the criteria are met the higher the mortality. Ranson's criteria are assessed both at admission and at 48 hours.


On admission
  • age: >55 years
  • white blood count: >16 000/mm
  • blood glucose level: >11.0 mmol/L
  • lactate dehydrogenase (LDH): >350 IU/L
  • aspartate aminotransferase (AST): >250 U/L
At 48 hours
  • packed cell volume: decrease >10% from admission
  • urea: increase >1.8 mmol/L from admission
    • equivalent to blood urea nitrogen (BUN): increase >5 mg/dL from admission
  • calcium: <2 mmol/L
  • oxygen partial pressure: <60 mmHg
  • base deficit: >4 mmol/L
  • fluid sequestration: >6 L


  • 0-2 criteria: <1% mortality
  • 3-4 criteria: 16% mortality
  • 5 or more: >40% mortality
Pancreatic pathology
Share article

Article information

rID: 7116
Synonyms or Alternate Spellings:
  • Ranson's criteria

Support Radiopaedia and see fewer ads

Updating… Please wait.

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.