methemoglobinemia
(mĕt″hē-mō-glōb″ĭ-nē′mē-ă)
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[″ + ″ + ″ + haima, blood]
The clinical condition in which more than 1% of hemoglobin in blood has been oxidized to the ferric (Fe3+) form. The most common sign is cyanosis, because the oxidized hemoglobin does not transport oxygen. Very high concentrations of methemoglobin in the blood, i.e., greater than 30%, may produce dizziness, drowsiness, headache, or more severe neurological symptoms. Coma, seizures, and cardiac arrhythmias may occur with levels greater than 55%. Methylene blue is used as an antidote.
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Citation
Venes, Donald, editor. "Methemoglobinemia." Taber's Medical Dictionary, 24th ed., F.A. Davis Company, 2021. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/765363/all/methemoglobinemia.
Methemoglobinemia. In: Venes DD, ed. Taber's Medical Dictionary. F.A. Davis Company; 2021. https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/765363/all/methemoglobinemia. Accessed December 10, 2024.
Methemoglobinemia. (2021). In Venes, D. (Ed.), Taber's Medical Dictionary (24th ed.). F.A. Davis Company. https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/765363/all/methemoglobinemia
Methemoglobinemia [Internet]. In: Venes DD, editors. Taber's Medical Dictionary. F.A. Davis Company; 2021. [cited 2024 December 10]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/765363/all/methemoglobinemia.
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