Surgery In a head injury patient, mannitol should not be used for control of increase intracranial pressure when A Serum osmolality >320 mOSmol/kg B Arterial PaCO2>35 mm Hg C Arterial PaCO2>100 mm Hg D Arterial PH 7.4 💡 Explanation In a head injury patient, mannitol should not be used for control of increase intracranial pressure when ✓ Correct Answer: A. Serum osmolality >320 mOSmol/kg