🫃 Ranson Criteria (Acute Pancreatitis)
UseSeverity assessment in acute (non-gallstone) pancreatitis.
StrataThree or more positive criteria mark severe disease with higher mortality; complete scoring needs 48 hours, s…
LimitsCannot fully score at presentation — do not delay resuscitation waiti… · Modern practice often prefers BISAP/APACHE-II/revised Atlanta for ear… · Gallstone pancreatitis uses adjusted laboratory thresholds — use the …
SourceACG 2024 doi:10.14309/ajg.0000000000003180
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
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Methodology · worked example, guidelines & full notes
Requires 48 hours to complete — limits early use.
When to use
Severity assessment in acute (non-gallstone) pancreatitis.
How it works
Five admission criteria (age, WBC, glucose, AST, LDH) plus six at 48 h (Hct fall, BUN rise, calcium, PaO₂, base deficit, fluid sequestration). ≥ 3 = severe.
Key points
- Requires 48 hours to complete — limits early use.
- ≥ 3 criteria indicates severe pancreatitis.
- BISAP/APACHE-II/revised Atlanta often preferred early.
References
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Admission: Age > 55 | No |
|---|---|
| Admission: WBC > 16 ×10⁹/L | No |
| Admission: Glucose > 200 mg/dL | No |
| Admission: AST > 250 U/L | No |
| Admission: LDH > 350 U/L | No |
| 48 h: Haematocrit fall > 10% | No |
| 48 h: BUN rise > 5 mg/dL | No |
| 48 h: Calcium < 8 mg/dL | No |
| 48 h: PaO₂ < 60 mmHg | No |
| 48 h: Base deficit > 4 mEq/L | No |
| 48 h: Fluid sequestration > 6 L | No |
→Ranson0/11
- Estimated mortality：Low (~1% mortality)
- Note：≥ 3 criteria indicates severe pancreatitis. Full score needs 48 h data.
| Admission: Age > 55 | Yes |
|---|---|
| Admission: WBC > 16 ×10⁹/L | Yes |
| Admission: Glucose > 200 mg/dL | Yes |
| Admission: AST > 250 U/L | Yes |
| Admission: LDH > 350 U/L | Yes |
| 48 h: Haematocrit fall > 10% | Yes |
| 48 h: BUN rise > 5 mg/dL | Yes |
| 48 h: Calcium < 8 mg/dL | Yes |
| 48 h: PaO₂ < 60 mmHg | Yes |
| 48 h: Base deficit > 4 mEq/L | Yes |
| 48 h: Fluid sequestration > 6 L | Yes |
→Ranson11/11
- Estimated mortality：~100% mortality
- Note：≥ 3 criteria indicates severe pancreatitis. Full score needs 48 h data.
Verification & sources · governance
FAQ
Frequently asked questions
- Does Ranson Criteria (Acute Pancreatitis) upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.