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A-a GradientBODE IndexGOLD StagingLungs AgeP/F RatioPEFR CalculatorWells PE Criteria
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A-a Gradient

Alveolar-Arterial (A-a) Gradient: Diagnostic tool to differentiate causes of hypoxemia (Intrapulmonary vs. Extrapulmonary). Elevated gradient suggests V/Q mismatch or shunt.
yrs
mmHg
mmHg
%

Related Pulmonary Tools

BODE Index
GOLD Staging
P/F Ratio
Lungs Age
PEFR Calculator
Wells PE Criteria
PERC Rule
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