Alvarado Score for Acute Appendicitis: A Comprehensive Guide
What is the Alvarado Score?
The Alvarado score is a clinical scoring system used to assess the likelihood of acute appendicitis. It is named after its creator, Dr. Antonio Alvarado, who developed it in 1995.
Components of the Alvarado Score
The Alvarado score consists of eight clinical variables:
- Age
- Anorexia
- Nausea or vomiting
- Tenderness in right lower quadrant
- Rebound tenderness
- Shifting dullness to percussion
- Elevated temperature
- Leukocytosis
Each variable is assigned a score of 0-2, with a higher score indicating a greater likelihood of appendicitis.
Interpretation of the Alvarado Score
The total Alvarado score is calculated by adding the scores for all eight variables. Scores can range from 0 to 10.
The following interpretation guidelines are used:
- Score of 0-4: Unlikely appendicitis
- Score of 5-6: Possible appendicitis
- Score of 7-10: Likely appendicitis
A score of 7 or higher is considered a positive test for appendicitis.
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