Medical laboratory testing is the heartbeat of medicine. It provides critical data for physicians to diagnose and treat disease, dating back thousands of years. Unfortunately, laboratory medicine as a ...

Lab tests are interpreted based on reference intervals. Normal ranges and reference intervals But this all raises the question: What actually counts as too high or too low on a blood test?

How should diagnostic tests developed in laboratories in hospitals and other health care settings be regulated—if at all? That's a question that has stirred lively debate within the U.S. health care ...

Your doctor says everything looks fine, but you still feel terrible. The problem might not be your health but how labs define “normal.” Understanding the difference between normal and optimal could ...

If you’ve ever had a doctor order a blood test for you, chances are that they ran a complete blood count, or CBC. One of the most common blood tests in the world, CBC tests are run billions of times ...