Alvarado Score
Weighted items sum to 0–10: migration RLQ +1, anorexia +1, nausea/vomiting +1, RLQ tenderness +2, rebound +1, fever +1, WBC shift +2, left shift +1 (teaching weights).
Calculator
How it works
The Alvarado score combines symptoms, signs, and laboratory clues to stratify appendicitis probability.
Limits
Pregnancy, atypical anatomy, early disease, and sepsis can defy scoring; do not delay emergency care.
Educational tool only—not for diagnosis or treatment decisions.