A child with bluish-purple skin is found to lack the enzyme diaphorase and is subsequently diagnosed with which genetic disorder?

Question

Quizplus · Accepted Answer

Methemoglobinemia is the correct answer because the lack of the enzyme diaphorase leads to an inability to reduce methemoglobin back to hemoglobin, resulting in a higher level of methemoglobin which causes a bluish-purple skin coloration due to the decreased oxygen-carrying capacity of the blood.

A Child with Bluish-Purple Skin Is Found to Lack the Enzyme