Which of the following is a symptom of a stroke?

• A. Fever
• B. Nausea
• C. Blurred vision
• D. Slurred Speech

Answer: (D)

Strokes cause sudden loss of brain function, so signs appear quickly and affect speech, vision, movement, or balance. Slurred speech directly shows disruption in the brain areas that control muscles for talking, which is a hallmark of a neurologic event like a stroke. It’s a clear, specific symptom that prompts urgent evaluation, which is why it’s the best choice among the options.

Fever suggests infection rather than a stroke. Nausea can occur with many conditions and isn’t a reliable indicator by itself. Blurred vision can occur with stroke, but slurred speech is more characteristic and specific to acute neurologic impairment, making it the strongest sign in this set. If someone exhibits this symptom, seek emergency medical help immediately.