Alvarado Score

Scores the MANTRELS criteria to estimate the probability of acute appendicitis and guide observation, imaging or surgical consultation.

What you enter

• Migration of pain to the right lower quadrant
• Anorexia
• Nausea or vomiting
• Tenderness in the right lower quadrant
• Rebound tenderness
• Elevated temperature ≥ 37.3 °C
• Leukocytosis > 10 ×10⁹/L
• Neutrophil left shift (> 75%)

Reference

Alvarado A, Ann Emerg Med 1986

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All 63 clinical calculators

Educational decision-support tools. They do not replace clinical judgment, local protocols or specialist advice: verify results before acting on them.