42-year-old alcoholic man presented with vomiting. His venous blood gases showed the following:

PH = 7.579

pCO2 = 48 mmHg

HCO3 = 45 mmol/L

Na = 143 mmol/L

K = 4.3 mmol/L

Cl = 82 mmol/L

Hb = 200 g/L

Glucose = 7.1 mmol/L

Lactate = 6.9 mmol/L

Creatinine = 87 umol/L

Interpret these results?