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.
RDW is an early marker of several types of anemia, thatâs because RDW value means how red cells sizes are distributed in the blood sample, the normal RDW value means that RBCs are in normal size or the same size, high or low RDW value means that the RBCs show variant sizes, in many types of anemia, RBCs appear in abnormal sizes which s detected by RDW value.