Lab case 386

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85 years old lady with history of COPD, brought to ED with low GCS after VF cardiac arrest followed by return of spontaneous circulation after 3 minutes of CPR and a single DC shock. Her VBG on arrival showed:

PH = 7.222

PCO2 = 87.8 mmHg

PO2 = 28.7 mmHg

HCO3 = 34.7 mmol/L

Na = 138 mmol/L

K = 4.8 mmol/L

Cl = 99 mmol/L

Ca = 1.17 mmol/L

Glu = 6.9 mmol/L

Lac = 1.6 mmol/L

Cr = 74 umol/L

 

Questions:

  1. Interpret these results
  2. What is the potential cause of cardiac arrest in this case?
  3. How will you manage this case?