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.
In general, MCV is the most useful index and divide the anemias into microcytic, normocytic and macrocytic types. The MCH and MCHC add very little to the information provided by MCV. Another piece of useful information on the CBC results is Red Cell Distribution Width (RDW). The RDW is an expression of the size distribution spread of the erythrocyte population. It is computed from the RBC histogram and is the coâefficient of variation, expressed in percent, of the red cell size distribution.