An 80 year old man presents to your ED with shortness of breath for the last 12 hours. On examination he has significant intercostal recession and tachypnoea with oxygen saturations of 88% on room air.
His ABG on 6 litres oxygen: pH 7.172
pCO2 83.3 mmHg pO2 64 mmHg
HCO3 29.3 mmol/l BE -2.2
O2 sats 86.2 %
Hb 159 g/l
Na 133 mmol/l K 4.3 mmol/l Cl 95 mmol/l
Glu 13.1 Lac 0.9 mmol/l Creat 50 umol/l
Describe and interpret his blood gas?
List causes of his illness?
Describe key treatment interventions?