A 4 week old is brought to ED post cardiac arrest – the child was found in her cot not breathing. The parents performed CPR immediately and on arrival the child had ROSC. The child has been unwell for a few days

A VBG was performed

pH 6.83                               Na 141mmol/l

pCO2 68 mmHg                K 6.4 mmol/l

pO2 39 mmHg                   Cl 110mmol/l

HCO3 11 mmol/l              Cr 45 umol/l

B/E-22                                 BSL 9mmol/l

Lactate 18 mmol/l

1. Describe and Interpret the VBG
2. List possible causes of a critically unwell neonate