Appendicitis Inflammatory Response (AIR) Score (teaching)
Vomiting +1, RLQ pain +1, rebound tenderness +2, WBC elevation band +1, fever +1, neutrophilia +1, plus CRP tier points (0–5) to reach a maximum of 12 in this simplified calculator.
Calculator
How it works
The AIR score combines symptoms, examination findings, leukocyte indices, and CRP to stratify appendicitis risk in ED teaching pathways.
Limits
CRP tiers here are didactic placeholders—align thresholds with your laboratory (mg/L vs mg/dL) and institutional score definitions.
Educational tool only—not for diagnosis or treatment decisions.