An 11 year old girl presents feeling weak and tired. She has had a difficult day at school with cross country. She has no fevers but on history has frequency and excessive thirst. Her blood tests show:pH 7.214

HCO3  10 mmol/l

CO2   35 mmol/l

Na  131 mmol/l

K  3.8 mmol/l

Cl  98 mmol/l

Creat  81 umol/l

Hb  155 g/l

WCC  13.3

Glucose 23.3

Interpret the blood tests

Describe the principles of management

In detail, what are the immediate treatment priorities?