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Respiratory

11 calculators in Respiratory.

Oxygenation Index

Oxygenation Index for severity stratification of paediatric ARDS (PARDS).

Pediatric Asthma Score (PAS)

Severity assessment of an acute paediatric asthma exacerbation from respiratory rate plus four clinical signs (5–15).

Pediatric Asthma Severity Score (PASS)

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

Westley Croup Score

Grades croup severity from five clinical signs (0–17) to guide treatment and disposition.

Alveolar–Arterial (A–a) Oxygen Gradient

Difference between alveolar and arterial oxygen tension — assesses the cause of hypoxaemia (gas-exchange defect vs hypoventilation).

Oxygen Saturation Index (OSI)

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

Pediatric Respiratory Assessment Measure (PRAM)

Validated acute asthma severity score from five signs (0–12).

PaO₂/FiO₂ Ratio (P/F Ratio)

Oxygenation index for acute respiratory distress, from arterial oxygen and FiO₂.

SpO₂/FiO₂ Ratio (S/F Ratio)

Non-invasive oxygenation index for pediatric ARDS (PALICC-2), using pulse oximetry instead of an arterial gas.

Arterial Oxygen Content (CaO₂)

Total oxygen carried in arterial blood — bound to haemoglobin plus dissolved.

Asthma Predictive Index (API)

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