A 70-year-old man presents with sudden onset right-sided weakness and expressive dysphasia 1 hour ago. Capillary glucose is 5.4 mmol per litre. Examination confirms a dense right hemiparesis. What is the single most appropriate next step?AStart aspirin 300 mg immediately in the emergency departmentBArrange urgent non-contrast CT head within 1 hour of arrivalCArrange carotid Doppler ultrasound as first-line imagingDDelay brain imaging until 24 hours after symptom onsetEStart high-dose statin immediately and arrange routine outpatient reviewCheck my answer