Identifying a stroke

How do you know if someone has suffered a stroke?
Ok, last month it was cancer, this month it’s about strokes. The following is from a posting on a local Forum:
STROKE IDENTIFICATION: During a BBQ, a friend stumbled and took a little fall – she assured everyone that she was fine (they offered to call paramedics) and just tripped over a brick because of her new shoes. They got her cleaned up and got her a new plate of food – while she appeared a bit shaken up, Ingrid went about enjoying herself the rest of the evening. her husband called later telling everyone that his wife had been taken to the hospital – (at 6:00 pm , she passed away.) She had suffered a stroke at the BBQ. Had they known how to identify the signs of a stroke, perhaps she would be with us today. Some don’t die. They end up in a helpless, hopeless condition instead.
It only takes a minute to read this… A neurologist says that if he can get to a stroke victim within 3 hours he can totally reverse the effects of a stroke…totally. He said the trick was getting a stroke recognized, diagnosed, and then getting the patient medically cared for within 3 hours, which is tough.
RECOGNIZING A STROKE
Remember the “3” steps, STR . Read and Learn! Sometimes symptoms of a stroke are difficult to identify. Unfortunately, the lack of awareness spells disaster. The stroke victim may suffer severe brain damage when people nearby fail to recognize the symptoms of a stroke. Now doctors say a bystander can recognize a stroke by asking three simple
questions:
S * Ask the individual to SMILE.
T * Ask the person to TALK to SPEAK A SIMPLE SENTENCE (Coherently) (i.e. It is sunny out today)
R * Ask him or her to RAISE BOTH ARMS.
NOTE: Another ‘sign’ of a stroke is this: Ask the person to ‘stick’ out their tongue. If the tongue is ‘crooked’, if it goes to one side or the other that is also an indication of a stroke. If he or she has trouble with ANY ONE of these tasks, call an ambulance immediately !! and describe the symptoms to the dispatcher. A cardiologist says if everyone who reads this then passes it to 10 people; you can bet that at least one life will be saved.