This abnormal hemoglobin forms when the iron is oxidized to the ferric (Fe³⁺) state, and normally, less than 1% of the total circulatory hemoglobin is in this form in the normal individual.

Question

Quizplus · Accepted Answer

Methemoglobin is the only choice that describes the abnormal hemoglobin formed when iron is oxidized to the ferric state. Carboxyhemoglobin is formed when hemoglobin binds to carbon monoxide, and sulfhemoglobin is formed by the oxidation of the sulfur in hemoglobin.

This Abnormal Hemoglobin Forms When the Iron Is Oxidized to the Ferric