Ranson

Ranson's criteria are a clinical prediction rule for predicting the severity of acute pancreatitis. They were introduced in 1974 by the American surgeon Charles Gardner Ranson.

Overview

Ranson's criteria are used to predict the prognosis and severity of acute pancreatitis. If the score ≥ 3, severe pancreatitis likely. If the score < 3, severe pancreatitis is unlikely. If the score > 7, high probability of severe pancreatitis.

Criteria

The criteria are:

• Age in years > 55 years
• White blood cell count > 16,000 cells/mm³
• Blood glucose > 200 mg/dL
• Serum AST > 250 IU/L
• Serum LDH > 350 IU/L

Scoring

The score is calculated based on 11 factors, with 1 point awarded for each positive factor. The factors are divided into two groups: those that are measured at admission, and those that are measured at 48 hours.

See also

• APACHE II
• Glasgow score
• BISAP Score
• Harmless Acute Pancreatitis Score
• PAN-PET

References

Ranson Resources
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