Methemoglobinemia

Overview

The presence of methemoglobin in the blood, resulting in cyanosis. A small amount of methemoglobin is present in the blood normally, but injury or toxic agents convert a larger proportion of hemoglobin into methemoglobin, which does not function reversibly as an oxygen carrier. Methemoglobinemia may be due to a defect in the enzyme NADH methemoglobin reductase (an autosomal recessive trait) or to an abnormality in hemoglobin M (an autosomal dominant trait). (Dorland, 27th ed)

This information is general and should not be treated as medical advice. Always speak directly with a qualified healthcare professional before making decisions about treatment, diagnosis, procedures, medicines or care.

Quick facts about Methemoglobinemia

Topic type

Condition

Category

General Healthcare

MeSH classification

C15.378.619

Preparing for an appointment about Methemoglobinemia

If you are speaking with a healthcare professional about Methemoglobinemia, it can help to prepare a few details in advance.

• Write down your symptoms and when they started.
• Bring details of any medicines, supplements or previous treatments.
• Ask what tests or assessments may be needed.
• Ask what treatment or management options may be suitable.
• Ask when you should seek urgent medical help or follow-up care.

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