An update on transient ischemic attacks.

Each year in the United States 200,000-500,000 people have a transient ischemic attack (TIA). These episodes of brief neurologic deficits were thought to be fairly benign, but this view is changing. In 2002, a new definition for TIA was proposed, and a more intensive diagnostic workup recommended to look for a probable cause of the transient neurologic deficit. Implementation of prevention strategies is essential because the risk of a stroke following a TIA is approximately 30% within 5 years. These changes have important implications for nursing care and patient advocacy. In addition, patient and family education must be addressed by the entire healthcare team.