A 67-year-old man is brought to the ER after a sudden fall. He has slurred speech, right-sided weakness, and facial droop. BP: 180/100 mmHg. CT shows no hemorrhage.
Question:
What is the most appropriate next step in management?
A. Start aspirin immediately
B. Administer IV mannitol
C. Begin thrombolysis with tPA
D. Order MRI brain with contrast