A 55 year old female presents to your ED with backache and fever.

Her vital signs: BP 90/60, PR 110/min, RR 30/min

Her blood results:

pH  7.146  (7.36-7.44)

pCO2  19.5  (35-45  mmHg)

HCO3  6.4  (22-26  mmol/l)

BE  -21

Hb  88  g/l

Na  134  (137-145  mmol/l)

K  3.9  (3.5-5  mmol/l)

Cl  117  (99-111  mmol/l)

Glu  4.9  (4-6  mmol/l)

Lac  0.5

Creat  208  (<130 umol/l)

Describe and interpret the results