Risk stratisfication score introducted by Maden Samuel in 2002.

The Pediatric Appendicitis Score had a sensitivity of 1, speciificity of 0.92, positive predictive value of 0.96, and negative predictive value of 0.99

Signs:

• Right lower quadrant tenderness = 2 points
• Cough/Percussion/Hop RLQ tenderness = 1 point
• Pyrexia = 1 point

Symptoms:

• RLQ migration of pain = 1 point
• Anorexia = 1 point
• Nausea/Vomiting = 1 point

Laboratory Values:

• Leukocytosis = 2 points
• Polymorphonuclear neutrophiia = 1 point

Scores of 4 or less are least likely to have acute appendicitis, while scores of 8 or more are most likely.

References

Pediatric Appendicits Score. Samuel, M. J Pedia Surg.37:877-888. 2002.