Blood Gas #2

History: A 53-year-old woman is found collapsed at home. Below is her arterial blood gas on arrival:

pH 7.58 Na 138 mmol/L
pCO2 12.6 mmHg K 3.7 mmol/L
pO2 160 mmHg (FiO2 0.25) Cl 108 mmol/L
HCO3 12.1 mmol/L Glucose  6.3 mmol/L
Lactate 3.5 mmol/L
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