cliot (version 1.0.0)

pediatric_asthma_score: Pediatric Asthma Score (PAS)

Description

Calculates the Pediatric Asthma Score (PAS), an objective assessment tool used to determine the severity of an acute asthma exacerbation in children. The score evaluates five clinical components: respiratory rate, oxygen requirement, retractions, dyspnea (speech/activity), and auscultation findings. The total score ranges from 5 to 15.

Usage

pediatric_asthma_score(age, respiratory_rate, oxygen_saturation,
                       on_supplemental_oxygen, retractions, dyspnea, auscultation)

Value

A list containing:

PAS_Score

The calculated total score (Range 5-15).

Severity

Clinical severity classification (Mild 5-7, Moderate 8-11, Severe 12-15).

Subscores

Breakdown of points assigned for each of the five components.

Arguments

age

Numeric. Patient age in years. Used to stratify respiratory rate scoring.

respiratory_rate

Numeric. Respiratory rate in breaths per minute.

oxygen_saturation

Numeric. Oxygen saturation (SpO2) percentage (0-100).

on_supplemental_oxygen

Numeric (0 or 1). Is the patient currently receiving supplemental oxygen? (1 = Yes). Note: Being on oxygen automatically assigns the maximum points (3) for the oxygen component.

retractions

String. Severity of retractions. "none_intercostal": Normal to Intercostal retractions (1 pt). "substernal_suprasternal": Substernal or Suprasternal retractions (2 pts). "supraclavicular_flaring": Supraclavicular retractions, nasal flaring, or head bobbing (3 pts).

dyspnea

String. Speech or activity level limitations. "sentences": Counts to 10, speaks in sentences, or normal activity (1 pt). "phrases": Counts to 7, speaks in partial phrases, or decreased activity (2 pts). "words": Counts to 3, speaks in single words, or minimal activity (3 pts).

auscultation

String. Breath sounds. "end_expiratory": Normal breath sounds or end-expiratory wheeze only (1 pt). "throughout": Expiratory wheezing > 50% of exhalation +/- inspiratory wheezing (2 pts). "diminished": Diminished or absent breath sounds (silent chest) (3 pts).

References

Schuh S, et al. Efficacy of frequent nebulized ipratropium bromide added to frequent high-dose albuterol therapy in severe childhood asthma. J Pediatr. 1995;126(4):639-645.

Examples

# Example 1: Moderate Exacerbation
# 6yo, RR 30 (2 pts), SpO2 92% (2 pts), Substernal retractions (2 pts),
# Phrases (2 pts), Throughout wheeze (2 pts)
# Score = 10
pediatric_asthma_score(6, 30, 92, 0, "substernal_suprasternal", "phrases", "throughout")

# Example 2: Mild Exacerbation
# 10yo, RR 20 (1 pt), SpO2 98% (1 pt), No retractions (1 pt),
# Sentences (1 pt), End-exp wheeze (1 pt)
# Score = 5
pediatric_asthma_score(10, 20, 98, 0, "none_intercostal", "sentences", "end_expiratory")