Which of the following is a sign of a stroke?

A sign of a stroke is sudden numbness, particularly when it affects one side of the body. This can manifest as weakness or loss of sensation in the face, arm, or leg, often accompanied by other symptoms such as confusion, difficulty speaking, or issues with balance. The onset of these symptoms is typically rapid and requires immediate medical attention. Recognizing sudden numbness as a potential symptom is crucial because it aligns with the immediate medical response needed for stroke treatment, often encapsulated in the acronym FAST (Face, Arms, Speech, Time).

Other choices do not represent clear signs of a stroke. Consistent headaches can indicate a variety of conditions but are not specific to stroke, especially if they are not accompanied by the other hallmark stroke signs. A rapid heartbeat can occur in response to various stimuli but does not specifically indicate a stroke. A facial rash may suggest an allergic reaction or infection rather than a neurological event like a stroke. Understanding these distinctions is important for accurate identification and response to medical emergencies.