A five-year-old child presented at the ER with difficult symptoms. The child was seen by a physician's assistant - not an MD. The physician's assistant tested the child for strep throat, based on the child's symptoms. The test returned positive. The child was prescribed medication and sent home. A few hours later, the child suffered a massive stroke. The child is now bound to a wheelchair and requires a life-care plan. How did this happen? And what can we learn?