🧭 REBEL Rundown
🗝️ Key Points
Three validated scores (Alvarado, PAS, pARC) exist to risk-stratify pediatric appendicitis, each suited to a different setting.
Location Specific: Alvarado is the best low-tech option for primary care/outpatient when labs are limited.
Speed vs Quality: PAS is quick and useful in the ED for confirming high clinical suspicion, but a low score doesn’t reliably rule appendicitis out.
Age Specific: pARC gives the most individualized, accurate risk estimate and best guides imaging decisions in kids 5 and up.
🤕 Case
An 8-year-old girl presents with right lower quadrant pain after a day of vague periumbilical discomfort, poor appetite, vomiting, and a low-grade fever. Her parents were hoping it was “just a stomach bug,” but her exam says otherwise. Which appendicitis score helps risk stratify her next steps?
🔗 Scoring Tools
🎯 Quick Hits
💬 Case Resolution
The scores agree with what your clinical gestalt has been telling you all along: this isn’t just a stomach bug. Ultrasound confirms appendicitis, surgery removes the culprit, and two days later she is back to jumping on the playground and eating everything in sight.
🚨 Clinical Bottom Line
- Alvarado: Go-to score in primary care/outpatient settings where labs are limited.
- PAS: Useful for confirming high clinical suspicion in the ED.
- pARC:Best overall risk stratification tool that provides an individualized probability that directly guides imaging decisions.
Post Peer Reviewed By: Mark Ramzy, DO (X/IG: @MRamzyDO)
🧭 Prep Sheets
- Created August 31, 2026
- Pediatrics
- DOWNLOAD
- Created August 31, 2026
- Pediatrics
- DOWNLOAD
- Created August 31, 2026
- Pediatrics
- DOWNLOAD
👤 Author
🔎 Your Deep-Dive Starts Here
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