In adult increased ICP and/or herniation, which of the following is recommended as part of initial management?

• A. Mild Hyperventilation to maintain EtCO2 of 35 mmHg; elevate head of bed to 30°; consider TXA (2 g in 100 ml, 10 drop set, 3 drops a second over 5 minutes)
• B. Induce deep anesthesia and permit hypercapnia
• C. Immediate craniectomy without airway management
• D. Rapid infusion of high-dose diuretics

Answer: (A)

Managing increased intracranial pressure and potential herniation focuses on rapidly reducing ICP while preserving cerebral perfusion and ensuring the airway is protected. Mild hyperventilation to a normalized end-tidal CO2 around 35 mmHg causes cerebral vasoconstriction, which lowers cerebral blood volume and ICP. This is a temporizing measure that helps buy time for definitive interventions, especially while airway control and other therapies are being set up. Elevating the head of bed to about 30 degrees promotes venous drainage from the brain, further reducing ICP without compromising arterial inflow.

Consider tranexamic acid if there is suspected or confirmed intracranial hemorrhage and ongoing bleeding, as early control of hemorrhage can support overall stabilization when indicated by the clinical scenario.

Other options fall short for initial management: deep anesthesia with permitting hypercapnia would worsen ICP by causing vasodilation; performing a craniectomy without securing the airway is unsafe and premature; rapid infusion of high-dose diuretics can lower blood pressure and compromise cerebral perfusion.