Acid-Base Sandbox
Manipulate PaCO₂ and HCO₃⁻ in real time. Watch the Davenport plot reflect the underlying pH chemistry, hover to read any coordinate, and click an isobar to snap. Drag the patient point to set both axes at once.
Davenport Plot
Live · InteractiveInterpretation
Normal acid-base balance
All values within reference range. The point lies inside the normal zone.
Mechanism & traps
Tune the sliders or pick a preset to see the engine commentary.
Case Library
USMLE-style clinical cases across all five acid-base patterns. Each case loads as a cinematic briefing with the patient avatar, the trap layer, and the next correct step.
— cases
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Challenge Mode
Work through the six-step diagnostic ladder Anthropic-style. Each step locks the next until the engine confirms your reasoning.
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Free ABG Explainer
Paste values from any patient. The engine returns a structured interpretation: primary disorder, expected compensation, AG, delta-ratio, osmolar gap and likely etiology direction.
Arterial Blood Gas
Acid-base trio measured at room air
·
7.35–7.45
mmHg
35–45
mEq/L
22–26
Electrolytes & Metabolic
Required for AG and delta-delta calculation
mEq/L
135–145
mEq/L
98–108
mEq/L
3.5–5.0
g/dL
3.5–5.0
Optional Workup
Add what you have — engine uses them if present
mg/dL
70–180
mmol/L
< 2.0
mOsm/kg
285–295