Pediatric Asthma Severity Score Calculator

Calculate the Pediatric Asthma Severity Score (PASS) to assess acute asthma exacerbation intensity.

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Input Parameters

Enter details for calculation.

PASS Score

0 / 6
Mild Exacerbation
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Expert Tip

PASS assists clinical staff in emergency settings to standardize asthma severity and direct bronchodilator treatment protocols.

Calculation Methodology & Details

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Formula

PASS = Wheeze + Work + SpO₂

Standard triage tool scoring three primary clinical indicators from 0 to 2.

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Important Disclaimer

The calculations provided are for educational and general informational purposes only. They do not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.

How PASS is Scored

Follow these steps to use this calculator:

1

Auscultate Wheeze

Determine wheeze phase and intensity.

2

Assess Retractions

Check chest accessory muscle use.

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Detailed Insights & Expert Guide

ℹ️ About this Calculation

This clinical pediatrics calculator assists pediatricians and parents with child growth tracking, weight-based medication dosing, neonatal screening, and pediatric acute severity scoring based on WHO and CDC standards.

Variable Glossary

Input

Pediatric Metrics

Age (months/years), weight (kg/lbs), height/length, head circumference, or clinical vital signs.

Parameter

Clinical Centiles & Scores

Growth Z-scores/percentiles, weight-based dose (mg/kg), PEWS acuity level, or Bilirubin phototherapy risk zone.

How to Calculate Step-by-Step

1

Step 1

Select child age group, biological sex, and enter physical growth measurements.

2

Step 2

Provide medication concentration or score clinical symptom criteria.

3

Step 3

Review calculated percentiles, single-dose volume (mL), or clinical acuity intervention guidelines.

FAQ

What growth standards are used for percentiles?
Calculations reference the WHO growth charts for infants 0-2 years and the CDC 2000 growth charts for children 2-20 years.
How is pediatric drug dosage verified?
Doses are calculated per kilogram of body weight (mg/kg/dose or mg/kg/day) and capped at maximum adult recommended dosages to ensure therapeutic safety.
Can pediatric tools replace direct clinical care?
No. Pediatric screening tools assist healthcare providers and parents, but prescription dosing and emergency management must be confirmed by a qualified pediatrician.