<prompt> The cause of systemic secondary insult to injured brain include all of the following except:HypercapniaHypoxemiaHypotensionHypothermia  <response>: Causes of secondary Brain injury Hypoxia: pO2 8kPa Hypotension: SBP 90 mmHg Raised ICP: ICP20mmHg Low cerebral perfusion pressure: CPP65mmHg Hypercapnia PyrexiaHypehermia Seizures Metabolic disturbances Hyperglycemia Ref: Bailey 25th edition Pgno: 299 