Which condition is characterized by symptoms persisting longer than 24 hours?

The condition characterized by symptoms persisting longer than 24 hours is Cerebrovascular Accident (CVA), also known as a stroke. A CVA occurs when there is a disruption in the blood supply to the brain, which can lead to significant neurological impairments. The symptoms associated with a CVA, such as weakness, difficulty speaking, and changes in vision, can last for an extended period, often leading to lasting deficits if not treated promptly.

In contrast, Amaurosis Fugax is typically a transient vision loss that resolves within a few minutes to hours and does not persist beyond 24 hours. A Transient Ischemic Attack (TIA), often referred to as a mini-stroke, also features symptoms that resolve within a short timeframe, usually less than 24 hours, serving as a warning sign for a potential future stroke. Recurrent headache may vary in duration but does not specifically define a persistent condition relative to the timescale of 24 hours typically defined for stroke events. Underlying these distinctions, the definition and clinical implications of a CVA align with the scenario of prolonged symptoms, reinforcing its classification as the correct answer.