Duration of TIA:: (A) 12 hours, (B) 24 hours, (C) 48 hours, (D) 36 hours
Answer is B. Ans. (b) 24 hoursRef.: Harrison 19th ed. / 2568, 17th ed. Ch. 364* The standard definition of TLA requires that all neurologic signs and symptoms resolve within 24 hours regardless of whether there is imaging evidence of new permanent brain injury; stroke has occurred if the neurologic signs and symptoms last for >24 hours.