These questions send up red flags when it comes to stroke and they are so easy even a non-medical person can understand them.

Professional caddy Thomas Walker says he knew of only one kind of stroke on the golf course . . . that was until now.

"My wife noticed that my speech was slurred and she took me to the emergency and they said I had a mild stroke," Walker says.

Fortunatley for Thomas,his wife recognized a change in Thomas that warranted a trip to the emergency room.

Recognition and quick thinking can get a stroke patient to the hospital where he can receive proper treatment for a better outcome and even full recovery.

Because patients can suffer from confusion during the stroke, bystanders may be the best to identify stroke symptoms.

And that's just been made easier with three simple questions based on the warning signs of stroke.

"Putting the arms up you are going to notice a significant difference in one arm . . . it will start to drop or they will be unable to raise it," says physical therapist Monica Bruesewitz.

Question Two: Ask the person to speak a simple sentence.

"You can have expressive aphasia where the patient can't get the words out- you can have receptive aphasia which is where they are unable to understand what you are saying. A lot of times you will get just a blank look," she says.

Question Three: Ask the person to smile.

Being able to smile. Is there a difference in the symmetry of that smile or is it very dramatic where one side goes up and the other doesn't move at all," Bruesewitz says.

If the patient has trouble with any of the tasks, its time to call 911 and describe the symptoms to the dispatcher.

While treatment of stroke is best left to medical professionals, those who have studied this concept say so far, bystanders were able to detect a stroke symptom with these three questions on average more than 95percent of the time.

The research at Chapel Hill School of Medicine in North Carolina will continue their studies with test training dispatchers and laymen to see how the questions work in real life situations.