🔥 Alvarado Score Diagnosis Simulator

Migratory Right Iliac Fossa Pain

Classic early symptom pattern of acute appendicitis onset.

• 1: Points awarded (MANTRELS criterion)
• Moderate: Sensitivity (placeholder figure)
• Hours: Typical onset (periumbilical to RIF)
• Visceral→somatic: Mechanism (placeholder note)

Why pain migrates

Short placeholder explaining visceral-to-parietal pain migration pattern.

Placeholder: migratory pain is the single most predictive symptom.

Anorexia, Nausea and Vomiting

Common accompanying symptoms scored as separate criteria.

• 1+1: Points awarded (anorexia, nausea/vomiting)
• ~70-80%: Prevalence (placeholder figure)
• After pain onset: Order (placeholder note)
• Low alone: Specificity (placeholder note)

Symptom scoring

Short placeholder describing anorexia and nausea/vomiting scoring rules.

Placeholder: these symptoms alone are nonspecific but additive.

Fever and Rebound Tenderness

Peritoneal irritation signs raise suspicion of progression.

• 2+1: Points awarded (tenderness, rebound, fever)
• ≥37.3°C: Fever threshold (placeholder figure)
• Blumberg sign: Rebound test (placeholder note)
• Highest single: Weight in score (RIF tenderness = 2pts)

Examining for peritonism

Short placeholder describing rebound tenderness and fever assessment.

Placeholder: RIF tenderness carries the most weight in the score.

Leukocytosis and Left Shift

Laboratory criteria complete the ten-point scale.

• 2+1: Points awarded (leukocytosis, left shift)
• >10,000/µL: WBC threshold (placeholder figure)
• >75% neutrophils: Left shift (placeholder note)
• 3 points: Lab max (of total 10)

Lab criteria

Short placeholder describing leukocytosis and neutrophil left shift.

Placeholder: labs add up to 3 of the 10 total points.

Total Score Interpretation and Action

Score guides discharge, observation, or surgical referral.

• Low risk: Score 1-4 (placeholder figure)
• Equivocal: Score 5-6 (image/observe)
• High risk: Score 7-10 (surgical consult)
• 10: Max score (MANTRELS total)

Using the total score

Short placeholder describing triage decisions by score band.

Placeholder: score ≥7 typically warrants surgical evaluation.