Hemoglobin that has undergone oxidation of the iron is known as?

Hemoglobin that has undergone oxidation of the iron is known as methemoglobin. Methemoglobin is a form of hemoglobin in which the iron atom has been oxidized from the ferrous (Fe2+) state to the ferric (Fe3+) state. This oxidation can occur due to exposure to certain chemicals, drugs, or toxins, or it can be a result of certain genetic conditions. Methemoglobin cannot bind to oxygen and therefore cannot transport it to body tissues, which can lead to a condition called methemoglobinemia.