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Respiratory

Asthma Predictive Index (API)

Estimates the risk of school-age asthma in a wheezing preschool child (Castro-Rodriguez).

Inputs

FieldUnitNotes
Wheezing frequency (first 3 years)
Major: parental asthma (physician-diagnosed)
Major: physician-diagnosed atopic dermatitis (eczema)
Minor: physician-diagnosed allergic rhinitis
Minor: wheezing apart from colds
Minor: blood eosinophilia ≥4%

FAQ

What is the Asthma Predictive Index (API)?

Estimates the risk of school-age asthma in a wheezing preschool child (Castro-Rodriguez).

What inputs does the Asthma Predictive Index (API) need?

Wheezing frequency (first 3 years), Major: parental asthma (physician-diagnosed), Major: physician-diagnosed atopic dermatitis (eczema), Minor: physician-diagnosed allergic rhinitis, Minor: wheezing apart from colds, Minor: blood eosinophilia ≥4%.

Related guides

Asthma Predictive Index (API): Predicting School-Age Asthma in the Wheezing Preschooler

The Castro-Rodriguez Asthma Predictive Index — recurrent wheeze plus major and minor criteria, the stringent vs loose definitions, and how a positive or negative API informs prognosis.

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Three-item bedside score (0–6) for grading acute asthma severity in children from wheezing, work of breathing, and prolonged expiration.

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Non-invasive oxygenation severity index (uses SpO₂ instead of PaO₂) for grading pediatric ARDS (PALICC).

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