Side-by-side comparison helps you choose the right calculator for a specific clinical question.
Clinical
Calculate the alveolar-arterial oxygen gradient to evaluate the cause of hypoxemia. Differentiates lung pathology from hypoventilation.
Formula
A-a gradient = [FiO₂ × (Patm − 47) − PaCO₂/0.8] − PaO₂
Inputs
Clinical
Interpret arterial blood gas (ABG) results to identify acid-base disorders. Determines primary disorder and compensation status from pH, pCO₂, and HCO₃⁻.
Formula
Systematic analysis using pH, PaCO₂, HCO₃⁻, Winter's formula, and compensation rules
Inputs