How to Quickly Identify a Stroke

　　To quickly identify and manage a stroke, remember “FAST”, which is the first letter of four English words.　　F (Face/Face): Observe whether the corners of the face are crooked when smiling; A (Arm/Upper Extremity): Raise both arms flat and observe whether they hang down weakly; S (Speech/Speech): Have slurred speech; T (Telephone/Time): If you have the above situation, call 120 emergency number immediately and come to the hospital in the shortest time because the time window for acute stroke is very short. cerebral infarction intravenous thrombolysis time window is very short, usually within 4.5 hours after the onset.