MCH is the initialism for Mean Corpuscular Hemoglobin. Taken from Latin, the term refers to the average amount of hemoglobin found in red blood cells. A CBC (complete blood count) blood test can be used to monitor MCH levels in blood. Lab Tests Online explains that the MCH aspect of a CBC test âis a measurement of the average amount of oxygen-carrying hemoglobin inside a red blood cell. MCH is one of three red blood cell indices (MCHC and MCV are the other two).
Type II Hypersensitivity. Type II hypersensitivity is also known as cytotoxic hypersensitivity and may affect a variety of organs and tissues. The antigens are normally endogenous, although exogenous chemicals which can attach to cell membranes can also lead to type II hypersensitivity.
Type III (called also immune-complex or subacute hypersensitivity) causes tissue damage and inflammation by the deposition of antigen-antibody complexes that activate complement and attract polymorphonuclear cells.ypersensitivity, immediate, n a humoral reaction, mediated by the circulating B lymphocytes, which causes any of three immediate responses: anaphylactic hypersensitivity, cytotoxic hypersensitivity, and immune system hypersensitivity.