Transient Ischemic Attacks are best described as episodes that self-resolve within 24 hours with no permanent brain damage.

• A. True
• B. False
• C. Sometimes
• D. Unknown

Answer: (A)

TIAs are brief episodes of neurologic dysfunction caused by temporary cerebral ischemia that resolve as blood flow returns, leaving no lasting brain tissue damage. Because the deficits disappear and there is no permanent injury, they are defined as lasting less than 24 hours in the traditional description. This makes the statement true. Modern practice often uses a tissue-based view (infarction on imaging would reclassify as a stroke), but with no infarction seen, a TIA fits the transient, non-permanent-damage picture. Clinically, TIAs are urgent warning signs for stroke risk, so they require prompt evaluation and management to reduce future risk.