Blood Lies - Medical Puzzles

April 13, 2011 12:00:00 AM PDT
About two decades ago, doctors could order up to 500 types of tests to diagnose a problem. Just 10 years ago, that number grew to around 1,000. Now, there are more than 5,000 tests doctors can choose from to help diagnose patients. With all that new technology and tools comes a new way of thinking about treatments and cures.