Pediatric Clinical Calculators & Assessment Tools
Evidence-based pediatric assessment tools for clinical dehydration, asthma severity, febrile infant risk stratification, croup severity, and early warning signs of clinical deterioration.
Why This Matters
Pediatric assessment requires age-specific tools that account for the physiological differences between children and adults. Dehydration affects up to 10% of children presenting to emergency departments with gastroenteritis, and accurate assessment is essential for appropriate management. Asthma is the most common chronic disease in children, affecting approximately 6-7% of children worldwide. Febrile infants ≤90 days present a diagnostic challenge — the Rochester Criteria help identify low-risk infants who can be managed without invasive testing. Croup affects 3-5% of children annually, and the Westley Score guides treatment decisions. The Pediatric Early Warning Score (PEWS) has been shown to reduce clinical deterioration events by up to 25% in hospitalized children through early recognition of decompensation.
When to Use
Use Clinical Dehydration Scale for objective dehydration assessment in children with gastroenteritis. Use Pediatric Asthma Severity Score for acute asthma exacerbation assessment in the emergency setting. Use Rochester Criteria for febrile infants ≤90 days to identify low risk of serious bacterial infection. Use Westley Croup Score to assess croup severity and guide treatment (steroids, epinephrine, intubation). Use PEWS (Pediatric Early Warning Score) for routine monitoring of hospitalized children to detect early signs of clinical deterioration.
Available Pediatrics Calculators
PEWS Score
The Pediatric Early Warning Score (PEWS) is a validated clinical scoring system designed to identify hospitalized children at risk of clinical deterioration. It is widely used in pediatric wards, emergency departments, and critical care settings globally.
Calculate →Rochester Criteria
The Rochester Criteria is a clinical decision rule that identifies febrile infants ≤90 days of age at low risk for serious bacterial infection (SBI), enabling safe outpatient management without empiric antibiotics or lumbar puncture.
Calculate →Dehydration Scale
The Clinical Dehydration Scale (CDS) is a validated, standardized tool for assessing dehydration severity in children with gastroenteritis. It evaluates four clinical signs — general appearance, eyes, mucous membranes, and tears — to guide management decisions.
Calculate →Peds Asthma
The Pediatric Asthma Severity Score (PASS) is a validated clinical tool for assessing the severity of acute asthma exacerbations in children. It uses five clinical parameters to objectively classify exacerbations as mild, moderate, or severe, guiding treatment decisions in the emergency setting.
Calculate →Croup Score
The Westley Croup Score is a validated clinical scoring system for assessing the severity of acute laryngotracheobronchitis (croup) in children. It evaluates five clinical parameters — stridor, retractions, air entry, cyanosis, and level of consciousness — to guide treatment decisions from outpatient management to ICU-level care.
Calculate →Ballard Score
The Ballard score (New Ballard Score, NBS) is a clinical assessment tool that estimates gestational age in newborns by evaluating neuromuscular and physical maturity criteria.
Calculate →Broselow Tape
The Broselow tape is a color-coded length-based system for estimating pediatric weight and providing standardized emergency drug doses and equipment sizes in critically ill children.
Calculate →Fluid Maintenance 4-2-1
The Holliday-Segar 4-2-1 rule is the standard method for calculating maintenance fluid requirements in children, accounting for daily insensible losses, urinary output, and growth needs.
Calculate →Pneumonia Severity
The Pediatric Pneumonia Severity Score (PPSS) is a clinical tool for assessing pneumonia severity in children under 5 years. It evaluates five clinical parameters — respiratory rate (age-adjusted), chest indrawing, oxygen saturation, ability to feed, and level of consciousness — to classify pneumonia as mild, moderate, or severe, guiding triage and management decisions.
Calculate →
Clinical Guidelines
- AAP Clinical Practice Guideline: Febrile Infants ≤90 Days (2024)
- BTS/SIGN British Guideline on the Management of Asthma (2024)
- AAP Clinical Report: Dehydration Assessment in Children (2023)
- WHO Guidelines for the Management of Common Childhood Illnesses (2024)
Frequently Asked Questions
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