A 30 year old male BIB police found at the shops acting erratically. The RMO accidentally cannulates the brachial artery and a ABG is obtained:pH 7.56                                                             Na 142 mmol/l

pCO2 17mmHg                                                K 4.2 mmol/l

pO2 126mmHg (FiO2 0.21)                             Cl 105 mmol/l

HCO3 15 mmol/l                                              Glucose 5.5 mmol/l

Lactate 3.8mmol/l

Describe and Interpret the ABG