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BISAP Score for Acute Pancreatitis Calculator

Sum of 5 binary criteria (BUN > 25, Mental status abn., SIRS, Age > 60, Pleural eff.).

Compute the BISAP (Bedside Index of Severity in Acute Pancreatitis) score from 5 binary criteria available within 24 h of admission: BUN > 25 mg/dL, impaired mental status, SIRS criteria met, age > 60 yr, and pleural effusion on imaging. Total ≥ 3 strongly predicts in-hospital mortality and need for ICU admission.

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

BISAP = Σ 5 binary criteria (each 0 or 1).

In depth

Compute the BISAP (Bedside Index of Severity in Acute Pancreatitis) score from 5 binary criteria available within 24 h of admission: BUN > 25 mg/dL, impaired mental status, SIRS criteria met, age > 60 yr, and pleural effusion on imaging. Total ≥ 3 strongly predicts in-hospital mortality and need for ICU admission.