Which of the following can be a sign or symptom of a stroke?

• A. Headache
• B. Slow, deep breathing
• C. Slow, strong pulse
• D. Dilated pupils or unequal size

Answer: (A)

Stroke can present with a sudden change in neurological function, and recognizing these signs quickly is essential because timely treatment can reduce brain damage. Headache can be a sign of a stroke, particularly if it comes on suddenly and is very severe, which can happen with a hemorrhagic stroke where a blood vessel bursts inside the brain. In a dental or clinical emergency, a sudden severe headache should raise concern for a possible stroke and prompt urgent evaluation and escalation.

The other options don’t fit as typical early stroke signs. Slow, deep breathing points more toward airway or respiratory issues rather than a brain event. A slow, strong pulse isn’t a hallmark marker of stroke. Dilated pupils or unequal pupil size can occur with various brain injuries or conditions but aren’t classic, primary stroke signs in the common emergency context.

So, headache stands out as a possible stroke sign among the choices, and spotting it early supports rapid response.