🩺 RIPASA Score (Appendicitis)
UseWhen to use: RIF pain workups when Alvarado/AIR may underperform in local populations.
Strata<5 low, 5–7 intermediate, ≥7.5 high, ≥12 very high probability bands.
LimitsWhen not to use: clear alternative diagnosis already explaining perit… · Pitfall: operating on score alone without imaging when available. · Complement Alvarado/AIR — do not force concordance.
SourceChong CF et al. RIPASA appendicitis score literature
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
0–16.5 total.
When to use
When to use: RIF pain workups when Alvarado/AIR may underperform in local populations.
How it works
Sex/age/symptoms/signs/labs with published half-point weights; total 0–16.5.
Key points
- 0–16.5 total.
- ≥7.5 high band.
- Next: Alvarado / AIR / US-CT.
References
- Chong CF et al. RIPASA appendicitis score literature
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.
| Sex | Male (1.0) |
|---|---|
| Age | < 40 years (1.0) |
| RIF pain | No (0) |
| Migration of pain to RIF | No (0) |
| Anorexia | No (0) |
| Nausea and vomiting | No (0) |
| Duration of symptoms | < 48 hours (1.0) |
| RIF tenderness | No (0) |
| Guarding | No (0) |
| Rebound tenderness | No (0) |
| Rovsing’s sign | No (0) |
| Fever > 37 °C / ≥ 37.5 °C | No (0) |
| Raised WBC | No (0) |
| Negative urinalysis | No / positive UA (0) |
→RIPASA3/16.5
- Band：Low probability — consider other diagnoses / observation
- Classic cutoffs：<5 low · 5–7 intermediate · ≥7.5 high · ≥12 very high
| Sex | Female (0.5) |
|---|---|
| Age | ≥ 40 years (0.5) |
| RIF pain | Yes (0.5) |
| Migration of pain to RIF | Yes (0.5) |
| Anorexia | Yes (1.0) |
| Nausea and vomiting | Yes (1.0) |
| Duration of symptoms | ≥ 48 hours (0.5) |
| RIF tenderness | Yes (1.0) |
| Guarding | Yes (2.0) |
| Rebound tenderness | Yes (1.0) |
| Rovsing’s sign | Yes (2.0) |
| Fever > 37 °C / ≥ 37.5 °C | Yes (1.0) |
| Raised WBC | Yes (1.0) |
| Negative urinalysis | Yes — negative UA (1.0) |
→RIPASA13.5/16.5
- Band：Very high / definite range — urgent surgical pathway
- Classic cutoffs：<5 low · 5–7 intermediate · ≥7.5 high · ≥12 very high
Verification & sources · governance
FAQ
Frequently asked questions
- Does RIPASA Score (Appendicitis) 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.
- How is RIPASA Score (Appendicitis) calculated in practice? Can you show a worked example?
- Inputs: Sex Male (1.0), Age < 40 years (1.0), RIF pain No (0), Migration of pain to RIF No (0), Anorexia No (0), Nausea and vomiting No (0), Duration of symptoms < 48 hours (1.0), RIF tenderness No (0)… → Result: RIPASA 3 /16.5（Band: Low probability — consider other diagnoses / observation, Classic cutoffs: <5 low · 5–7 intermediate · ≥7.5 high · ≥12 very high） Inputs: Sex Female (0.5), Age ≥ 40 years (0.5), RIF pain Yes (0.5), Migration of pain to RIF Yes (0.5), Anorexia Yes (1.0), Nausea and vomiting Yes (1.0), Duration of symptoms ≥ 48 hours (0.5), RIF tenderness Yes (1.0)… → Result: RIPASA 13.5 /16.5（Band: Very high / definite range — urgent surgical pathway, Classic cutoffs: <5 low · 5–7 intermediate · ≥7.5 high · ≥12 very high）