A 35-year-old male patient presents with a severe headache, vomiting, and altered mental status. CT scan reveals a large intraparenchymal hemorrhage with significant midline shift. As a flight nurse, what is the most immediate management priority during transport?
Administer osmotic diuretics
Ensure adequate oxygenation and ventilation
Monitor blood pressure and manage hypertension
Initiate IV fluids to maintain perfusion