Methemoglobinemia Herlein

Methemoglobin is a molecule containing iron ion (Fe3+), which is carried in hemoglobin and carries oxygen from the lungs to tissues. Blood that contains methemoglobin hemoglobin is purple in color and becomes sticky and thick.

Methemoglobins are formed as a result of damage to special enzymes (methemoglobin reductase) in erythrocytes (red blood cells), which usually occurs as a result of the hemolytic action of various toxins or poisons,