A mean platelet volume (MPV) blood test measures the average size of your platelets, the tiny blood cells that help form clots to stop bleeding. It is often included in a complete blood count (CBC) ...

Medically reviewed by Elizabeth Barnes, RDN Key Takeaways Most healthy people get enough magnesium from food, but certain ...

Dear Dr. Roach: I have low thyroid levels. My blood tests say that the levels are OK, but I still have all the symptoms. I received biological hormones, which helped a lot, but yams bind to the ...

Exocrine pancreatic insufficiency (EPI) causes clay-colored, greasy stools that smell foul. A stool test to check for low levels of the elastase enzyme can help diagnose the condition. The pancreas ...