Alvarado Score Calculator
Result
Alvarado Score Calculator The Alvarado Score Calculator adds up the eight MANTRELS clinical and lab findings to estimate the likelihood of acute appendicitis. The total ranges from 0 to 10, with higher scores indicating a greater probability. — free online calculator.
Formula
- Sum eight validated point inputs to show the Alvarado score (0–10) and an indicative interpretation. This screening score does not diagnose appendicitis; seek clinical evaluation for symptoms.
- The main inputs are Migratory RLQ Pain, Anorexia, Nausea/Vomiting, RLQ Tenderness, Rebound Pain, Fever, Leukocytosis, Left Shift. Enter them in the units and format shown in the calculator.
- Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Alvarado Score
- Migratory RLQ Pain: 1 0 or 1
- Anorexia: 1 0 or 1
- Nausea/Vomiting: 1 0 or 1
- RLQ Tenderness: 2 0-2
- Rebound Pain: 1 0 or 1
- Fever: 1 0 or 1
- Leukocytosis: 2 0-2
- Left Shift: 1 0 or 1
For inputs 1,1,1,2,1,1,2,1, the sum is 10 (high clinical suspicion). A score alone neither confirms nor rules out appendicitis.
Sample result: Calculating…
Frequently asked questions
What does the Alvarado Score calculate?
Alvarado Score Calculator The Alvarado Score Calculator adds up the eight MANTRELS clinical and lab findings to estimate the likelihood of acute appendicitis. The total ranges from 0 to 10, with higher scores indicating a greater probability. — free online calculator.
Which values should I enter?
Enter Migratory RLQ Pain, Anorexia, Nausea/Vomiting, RLQ Tenderness, Rebound Pain, Fever, Leukocytosis, Left Shift using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Alvarado score = sum of eight MANTRELS points. Six variables score 0 or 1, right-lower-quadrant tenderness and leukocytosis score 0–2 each; total 0–10. Risk labels are approximate clinical support only..
Why might my result differ from another source?
Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.