85 years old lady with history of COPD, brought to ED with low GCS after VF cardiac arrest and return of spontaneous circulation after 3 minutes of CPR and a single DC shock. Her VBG on arrival showed:
PH = 7.222 (7.35 – 7.45).
PCO2 = 87.8 (35 – 45)
PO2 = 28.7 (36 – 44)
HCO3 = 34.7 (22 – 28)
PO2 = 41.9 (70 – 80)
Na = 138 (135 – 145)
K = 4.8 (3.5 – 5.2)
Cl = 99 (95 – 110)
Ca = 1.17 ( 1.12 – 1.32)
Glu = 6.9 (3.0 – 5.4)
Lac = 1.6
Cr = 74
Questions:
- Interpret this blood gas
- What can be the cause of the cardiac arrest?
- How will you manage this case?