Blood Gas #4

History: An 83-year-old woman presents with an altered conscious state and a fever. Below is her arterial blood gas on arrival:

pH 7.24 Na 142 mmol/L
pCO2 22 mmHg K 4.7 mmol/L
pO2 115 mmHg (FiO2 0.4) Cl 114 mmol/L
HCO3 9 mmol/L Glucose  13 mmol/L
Lactate 12 mmol/L  



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