An ear infection is an inflammation of the middle ear, usually caused by bacteria, that occurs when fluid builds up behind the eardrum. Anyone can get an ear infection, but children get them more often than adults. Five out of six children will have at least one ear infection by their third birthday.
Red blood cell distribution width is a way for scientists to measure red blood cell volume and size. When red blood cells are larger than normal, that could indicate a problem. The reference range for RDW is as follows: RDW-SD: 29-46 fL.
Blood count terms: Rdw means red cell distribution width, which is the range of values for the width of your red blood cells. A higher number could mean that you are making lots more red cells for some reason. Mch mean mean (or average) red cell hemoglobin, which is the amount of hemoglobin in each red blood cell.