Is this Alvarado Score Calculator free to use?

Yes, Alvarado Score Calculator is 100% free to use online with no installation or account required.

How do I use the Alvarado Score Calculator?

Simply enter your values into the required input fields and click calculate to view the results instantly.

Can I use Alvarado Score Calculator on mobile devices?

Yes, the calculator is fully responsive and compatible with Android, iOS, Windows, macOS, and Linux web browsers.

Alvarado Score Calculator — Free Online Tool

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Alvarado Score Calculator

Evaluate acute appendicitis probability using the MANTRELS criteria

Clinical Scoring Rule (MANTRELS): Total score ranges from 0 to 10 points. Scores 1–4 suggest unlikely appendicitis, 5–8 suggest possible/probable appendicitis requiring observation or imaging, and 9–10 strongly suggest acute appendicitis. Select patient clinical findings below.

Alvarado Criteria Input

Migration of pain to right lower quadrant (RLQ)

Anorexia / Loss of appetite

Nausea or Vomiting

Tenderness in right lower quadrant (RLQ)

Rebound tenderness

Elevated temperature / Fever (≥ 37.3°C / 99.1°F)

Leukocytosis (WBC count > 10,000 / µL)

Shift to the left (Immature neutrophils > 75% / bands)

Calculation Results

⚠️ Not medical advice. For educational and clinical decision support only. Acute abdominal pain requires prompt surgical evaluation and clinical correlation.

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Alvarado Score Calculator

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