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Descriptor English: Methemoglobinemia
Descriptor Spanish: Metahemoglobinemia
Descriptor metahemoglobinemia
Scope note: Presencia de metahemoglobina en la sangre, lo que produce cianosis y dolor de cabeza, vértigo, agotamiento, ataxia, disnea, taquicardia, náuseas, vómitos, somnolencia, estupor, coma y (en raras ocasiones) la muerte. Puede ser de origen químico o inducida por fármacos, o deberse a una irregularidad en la hemoglobina M (un rasgo autosómico dominante) o a una insuficiencia de la enzima reductasa del citocromo-b5 (un rasgo autosómico recesivo). (Dorland, 28a ed)
Descriptor Portuguese: Metemoglobinemia
Descriptor French: Méthémoglobinémie
Entry term(s): Methemoglobinemias
Tree number(s): C15.378.619
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D008708
Scope note: 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)
Annotation: presence of methemoglobin in blood
Allowable Qualifiers: BL blood
CF cerebrospinal fluid
CI chemically induced
CL classification
CN congenital
CO complications
DG diagnostic imaging
DH diet therapy
DI diagnosis
DT drug therapy
EC economics
EH ethnology
EM embryology
EN enzymology
EP epidemiology
ET etiology
GE genetics
HI history
IM immunology
ME metabolism
MI microbiology
MO mortality
NU nursing
PA pathology
PC prevention & control
PP physiopathology
PS parasitology
PX psychology
RH rehabilitation
RT radiotherapy
SU surgery
TH therapy
UR urine
VE veterinary
VI virology
DeCS ID: 8885
Unique ID: D008708
NLM Classification: WH 190
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1966/01/01
Date of Entry: 1999/01/01
Revision Date: 1994/06/28
Methemoglobinemia - Preferred
Concept UI M0013565
Scope note 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)
Preferred term Methemoglobinemia
Entry term(s) Methemoglobinemias



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