Which condition is characterized by a temporary interruption in the brain's blood supply?

• A. CVA
• B. Epilepsy
• C. Headache
• D. Transient Ischemic Attack

Answer: (D)

A temporary interruption in the brain’s blood supply is a transient ischemic attack. It produces stroke-like symptoms such as weakness, speech trouble, numbness, or vision changes, but these symptoms resolve quickly as blood flow returns, leaving no lasting brain injury. This is why TIAs are distinguished from a cerebrovascular accident, where the disruption causes permanent damage. Epilepsy involves abnormal electrical activity triggering seizures, not a brief lack of blood flow. Headache can have many causes and isn’t defined by a temporary blood-supply interruption.

TIAs are a medical emergency because they signal an increased risk of a full stroke. Prompt evaluation, imaging, and risk-factor management are important to prevent a future stroke.