A 68-year-old man presents with sudden onset of severe headache described as 'the worst of his life.' What is the most appropriate next step?
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A
Administer analgesics and reassess in 2 hours
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B
Perform a non-contrast CT of the head immediately
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C
Schedule an outpatient MRI within 48 hours
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D
Prescribe sumatriptan for presumed migraine