These substitutions cause heme iron to auto-oxidize, which results in methemoglobinemia. Hb M has iron in the ferric state (Fe3+) and is unable to carry oxygen, which produces cyanosis. Seven hemoglobin variants affecting the α or β chains have been classified as M hemoglobins: Hb M-...
To do a CBC, a nurse puts a needle into a vein in your arm. The needle attaches to a test tube, where the blood collects. A lab then analyzes the blood sample. Normal MCH Levels MCH levels vary, so there is a range that doctors consider normal. MCH is measured in picograms per c...