pediatric_appendicitis_score: Pediatric Appendicitis Score (PAS)

In cliot: Clinical Indices and Outcomes Tools

Pediatric Appendicitis Score (PAS)

Description

Calculates the Pediatric Appendicitis Score (PAS), also known as the Samuel Score, to stratify the risk of acute appendicitis in children presenting with abdominal pain. The score ranges from 0 to 10 and categorizes patients into low, intermediate, or high risk groups.

Usage

pediatric_appendicitis_score(cough_hop_pain, anorexia, temperature_c,
                             nausea_vomiting, rlq_tenderness, wbc_count,
                             neutrophil_percent, migration_of_pain)

Arguments

cough_hop_pain	Numeric (0 or 1). Presence of cough, percussion, or hopping tenderness in the right lower quadrant. (1 = Yes, +2 points).
anorexia	Numeric (0 or 1). Presence of anorexia. (1 = Yes, +1 point).
temperature_c	Numeric. Patient's body temperature in degrees Celsius. (> 38.0 C adds +1 point).
nausea_vomiting	Numeric (0 or 1). Presence of nausea or vomiting. (1 = Yes, +1 point).
rlq_tenderness	Numeric (0 or 1). Tenderness over the right iliac fossa (RLQ). (1 = Yes, +2 points).
wbc_count	Numeric. White blood cell count in cells/uL (e.g., 12000). (> 10,000 adds +1 point).
neutrophil_percent	Numeric. Percentage of neutrophils (polymorphonuclear neutrophilia). (> 75% adds +1 point).
migration_of_pain	Numeric (0 or 1). Migration of pain to the right lower quadrant (RLQ). (1 = Yes, +1 point).

Value

A list containing:

PAS_Score	The calculated total score (Range 0-10).
Risk_Category	Risk stratification (Low, Intermediate, High).
Recommendation	Clinical guidance based on the score.

References

Samuel M. Pediatric appendicitis score. J Pediatr Surg. 2002;37(6):877-881. doi:10.1053/jpsu.2002.32893

Examples

# Example 1: High Risk
# Cough pain, RLQ tenderness, WBC 15k, Neutrophils 80%, Migration, Anorexia
# Score = 2 + 2 + 1 + 1 + 1 + 1 = 8
pediatric_appendicitis_score(1, 1, 37.5, 0, 1, 15000, 80, 1)

# Example 2: Low Risk
# Nausea only, normal labs
# Score = 1
pediatric_appendicitis_score(0, 0, 37.0, 1, 0, 8000, 50, 0)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.