Evidence-based acid–base interpretation for emergency medicine. 6-step systematic ABG analysis with guideline-referenced management.
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What you get with full access
5
Delta-Delta Ratio
FULL
Detects hidden concurrent acid-base disorders when high anion gap metabolic acidosis is present. Goes beyond the primary disorder to reveal what's masked.
▸Δ/Δ = (corrected AG − 12) / (24 − HCO₃⁻)
▸Identifies pure HAGMA vs. concurrent normal AG acidosis or metabolic alkalosis
▸Referenced: Kaplan LJ, Kellum JA. Crit Care Med 2004
6
Oxygenation + Evidence-Based Management
FULL
Calculates A-a gradient for oxygenation assessment, then generates context-specific management protocols linked to current clinical guidelines.