methemoglobin
(mĕt-hē″mō-glō′bĭn)
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[Gr. meta, across, + haima, blood, + L. globus, globe]
SYMB: metHb. A form of hemoglobin in which the ferrous iron has been oxidized to ferric iron. Methemoglobin cannot transport oxygen. The presence of metHb in the blood may be due to toxic substances such as aniline dyes, potassium chlorate, or nitrate-contaminated water and to atypical responses to benzocaine-like analgesics, among other causes. Methemoglobin also is present in patients with a hereditary deficiency of methemoglobin reductase.
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Citation
Venes, Donald, editor. "Methemoglobin." Taber's Medical Dictionary, 24th ed., F.A. Davis Company, 2021. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/770388/all/methemoglobin.
Methemoglobin. In: Venes DD, ed. Taber's Medical Dictionary. F.A. Davis Company; 2021. https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/770388/all/methemoglobin. Accessed November 23, 2024.
Methemoglobin. (2021). In Venes, D. (Ed.), Taber's Medical Dictionary (24th ed.). F.A. Davis Company. https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/770388/all/methemoglobin
Methemoglobin [Internet]. In: Venes DD, editors. Taber's Medical Dictionary. F.A. Davis Company; 2021. [cited 2024 November 23]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/770388/all/methemoglobin.
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