Laboratory testing supports most clinical decision-making; however, the concept of a fixed “normal” value is theoretical. Studies have suggested that approximately 7 out of 10 clinical decisions rely ...

Run-of-the mill? Middle of the road? Typical? The chance that you are correct is vanishingly small. If you're a clinician, like me, you get a LOT of medical questions. While we've all been asked to ...

Prepared by: G. Margaret Rourke, M.S., chief clinical chemist, and Lot B. Page, M.D., acting director, Chemical Laboratory; M. Althea King, chief technologist ...

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 ...

How should I treat a patient who has signs and symptoms of hypothyroidism but normal lab values? The 36-year-old woman has mitral valve prolapse, menorrhagia, headache, fatigue, brittle nails, hair ...

Brody H. Foy does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...