Methemoglobinemia
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Methemoglobinemia Symptoms & Signs
- In patients with type II congenital cytochrome b5 reductase deficiency: mental retardation, developmental delay, failure to thrive. They may also have seizures and other neurologic problems. Most die in infancy.
- In most patients with congenital methemoglobinemia (type I): a bluish discoloration to the skin and mucous membranes.
- In patients with acquired methemoglobinemia from chemical exposure: headache, fatigue, shortness of breath, lack of energy, and potentially shock, seizures, and death.
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