Alvarado Score

For Likelihood of Acute Appendicitis.

Symptoms

Migratory RIF pain Anorexia Nausea or Vomiting

Signs

Tenderness in RIF (+2) Rebound tenderness Fever (> 37.3°C)

Laboratory Findings

Leukocytosis (> 10x10⁹/L) (+2) Neutrophil shift to the left (> 75%)