Schoolboy Eddie, 12, is brought into A&E having been hit by a car on his way home from school, and doctors are concerned he may have suffered a bleed on the brain, as well as damage to his kidneys. Meanwhile, 64-year-old Linda, who breathes with the help of a tracheostomy, arrives at King's after experiencing respiratory failure at home, and student Amy, 20, has been coughing up blood