The use of 5% dextrose as an intravenous resuscitation fluid can: (A) Improve cerebral perfusion, (B) Provide glucose substrate for cerebral metabolism, (C) Reduce intracranial pressure and cause lacity of brain, (D) Reduce serum osmalality and cause brain edema
Answer is D. 5% dextrose is a free water solution. Dextrose gets metabolised and plasma osmolality is decreased. This increases the brain oedema in head injury and hence should be avoided.