Pediatric Appendicitis Risk Calculator (pARC) is a diagnosis tool commonly applied in Pediatrics. Quantifies risk of appendicitis on a continuous scale for children 5–18 years presenting with acute abdominal pain. Validated AUC 0.85 (95% CI 0.83–0.87). Use the interactive calculator for inputs, limitations, and primary references.

Not a substitute for clinical judgment. Verify critical values with primary literature, local protocols, and specialist input when appropriate.