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Pediatric Appendicitis Lab Score

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Pediatric Appendicitis Lab Score, Peditaric Appendicitis Laboratory Score

  • See Also
  1. Appendicitis
  2. Alvarado Score (MANTRELS Score)
  3. Appendicitis Inflammatory Response Score
  4. Pediatric Appendicitis Score
  • Criteria (up to 23 points total)
  1. Score 3: Nausea
  2. Score 4: Maximal pain in the right lower quadrant
  3. Score 4: White Blood Cell Count >=10,000/uL
  4. Score 7: Absolute Neutrophil Count >= 7500/uL
  5. Score 2: C-Reactive Protein >= 1 mg/dl
  6. Score 3: Calprotectin >= 0.5 ng/ml
  • Interpretation
  • Total Score (0 to 23)
  1. Score <7: Appendicitis in 7% of patients
  2. Score 7 to 18: Appendicitis in 33% of patients
  3. Score >18: Appendicitis in 86% of patients
  • Efficacy
  1. Identifies patients at low risk of Appendicitis (score <7)
    1. Test Sensitivity: 99.2%
    2. Negative Likelihood Ratio 0.03
  • References
  1. Benito (2020) Am J Emerg Med 38(3): 554-61 [PubMed]
  2. Ebell (2023) Am Fam Physician 107(3): 301-2 [PubMed]