Sample cases
Normal
DKA
COPD exacerbation
Salicylate toxicity
Protracted vomiting
Septic shock
Severe diarrhea
Hyperventilation
Sample type
Arterial
Venous
Blood gas
pH
computed
pCO₂
mmHg
computed
HCO₃⁻
mEq/L
computed
pO₂
mmHg
Chemistry
optional
Na⁺
mEq/L
Cl⁻
mEq/L
Lactate
mmol/L
Context
optional
Duration
Unknown
Acute
Chronic
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Interpretation
Show interpretation
Interpretation
Hide
Acid–base compass
· venous range
← acidifying
normal
alkalinizing →
Copy
pH/pCO₂/pO₂/HCO₃⁻
Explanation