Overview: Nashville: A nine-year-old boy who had recently had hip surgery is coughing up blood; A car has collided with a van on the interstate; A homeless girl wandered across the road and was hit by a car; A 43-year-old man has walked out of a hospital with IVs still in his arm; A frequent flyer is complaining of Tourette Syndrome; A non-responsive elderly lady has pressed a medical alarm; A man has crashed his car against a median; A 46-year-old man with a history of heart disease and alcoholism thinks he is having a heart attack; A young woman with a history of mental problems has been hit in the head by a man who had tried to rob her.