Which of the following is a classic symptom of a hemorrhagic stroke?

A classic symptom of a hemorrhagic stroke is a sudden severe headache, often described as a "thunderclap" headache or the worst headache of one’s life. This type of headache occurs due to bleeding within the brain or surrounding tissues, which irritates the meninges and increases intracranial pressure. The sudden onset distinguishes it from other types of headaches that may develop more gradually, and it signifies a serious medical condition that requires immediate attention.

In the clinical context of strokes, identifying the presenting symptoms accurately can guide the urgency of treatment and the interventions required. While other options may indicate various health conditions—like high fever which is not characteristic of a stroke, or altered heart rate and chest tightness which can be associated with cardiac events—they do not specifically relate to the acute presentation of a hemorrhagic stroke. Recognizing headache as a key hallmark symptom aids in the swift navigation of emergency care protocols, which can significantly influence patient outcomes.