80-year-old lady presented with confusion. Her Venous blood gases showed the following:
PH = 7.396
pCO2 = 52 mmHg
HCO3 = 31 mmHg
Na = 141 mmol/L
K = 3.1 mmol/L
Cl = 98 mmol/L
Hb = 129 g/L
Glucose = 9.5 mmol/L
Lactate = 2.0 mmol/L
Creatinine = 53 umol/L
Interpret these results