An 80 year old lady is brought in to the ED complaining of tiredness and rectal bleeding. Past medical history includes chronic renal failure, CCF/ pulmonary oedema and anaemia. She has known GI AV malformations with previous bleeding episodes.

Her blood results show:pH  7.186

pCO2  66.6 mmHg

HCO3  24.2  mmol/l

BE  -3.2  mmol/l

Hb  55 g/l

Na  138  mmol/l

K  6.4  mmol/l

Cl  108  mmol/l

Glu  7.0  mmol/l

Lac  1.3  mmol/l

Urea  49  mmol/l

Creat  200   umol/l

Describe and interpret

Describe your thought processes during this patients treatment