Medical emergencies aren't known for being fun, since they're often accompanied by blood, exposed bones, scrambled viscera, agonizing pain and more blood. So credit Swedish Medical Center with providing patients and their loved ones with a high-tech way to keep their minds off more unpleasant matters. Stalls in the emergency section of the hospital are outfitted with computers whose oversized screens and keyboards are mounted on swivel arms that extend over gurneys for easy access. Visitors can use the computers to watch any of 25 or so cable-television channels (the same selections available in regular rooms at Swedish), surf the Internet or play a variety of games. Getting hurt has seldom been so entertaining.