Version 2.78

Part Description

LP15729-4   Methemoglobin
Methemoglobin is a form of the oxygen-carrying protein hemoglobin, in which the iron in the heme group is in the Fe3+ state, not the Fe2+ of normal hemoglobin. Metheomglobin appears blue and is unable to carry oxygen. The NADH-dependent enzyme methemoglobin reductase (AKA diaphorase I) is responsible for converting methemoglobin back to hemoglobin. Normally 1-2% of people's hemoglobin is methemoglobin, a higher percentage than this can be genetic or caused by exposure to various chemicals and depending on the level can cause health problems. A higher level of methemoglobin will tend to cause a pulse oximeter to read closer to 85% regardless of the true level of oxygen saturation. Methemoglobinemia can be caused by genetic abnormalities such as diaphorase I deficiency, or abnormal hemoglobin variants. It can also be caused by certain oxidizing drugs (benzocaine), antibiotics (trimethoprim or sulfanamides), analine dyes, metoclopramide, chlorates, bromates, and nitrates. Infants under 6 months are particularly susceptible when exposed to nitrates, benzocaine, or even dehydration. Methemoglobinemia can be treated with supplemental oxygen and methylene blue. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Methemoglobin (Wikipedia)

Fully-Specified Name

Component
Methemoglobin
Property
SCnc
Time
Pt
System
Bld
Scale
Qn
Method

Additional Names

Short Name
MetHgb Bld-sCnc
Display Name
Methemoglobin (Bld) [Moles/Vol]
Consumer Name Alpha Get Info
Methemoglobin, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.29
Last Updated
Version 2.70
Order vs. Observation
Both

Member of these Groups Get Info

LOINC Group Group Name
LG49047-0 Methemoglobin|Pt|Bld

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Methämoglobin:Stoffmengenkonzentration:Zeitpunkt:Blut:Quantitativ:
es-MX Spanish (Mexico) Metahemoglobina:Concentración de sustancias:Punto temporal:Sangre:Cuantitativo:
es-ES Spanish (Spain) Metahemoglobina:Concentración de sustancia:Punto temporal:Sangre:Qn:
Synonyms: Cuantitativo
et-EE Estonian (Estonia) Methemoglobiin:SCnc:Pt:B:Qn:
Synonyms: Aine kontsentratsioon Juhuslik Kvantitatiivne Veri
fr-CA French (Canada) Méthémoglobine:Concentration de substance:Temps ponctuel:Sang:Quantitatif:
fr-FR French (France) Méthémoglobine:Moles/Volume:Ponctuel:Sang:Numérique:
fr-BE French (Belgium) Méthémoglobine:Concentration de substance:Temps ponctuel:Sang:Quantitatif:
it-IT Italian (Italy) Metaemoglobina:SCnc:Pt:Sangue:Qn:
Synonyms: Chimica Concentrazione di Sostanza Metemoglobina Punto nel tempo (episodio) Sangue
nl-NL Dutch (Netherlands) methemoglobine:mol/volume:moment:bloed:kwantitatief:
pl-PL Polish (Poland) Methemoglobina:stężenie molowe:punkt w czasie:krew:ilościowy:
Synonyms: Methemoglobina
pt-BR Portuguese (Brazil) Metemoglobina:#N/A:Pt:SgTotal:Qn:
Synonyms: ; MetHgb; Methgb; MetHb; Hi; Hemiglobin; Methaemoglobin; Substance concentration; Level; Point in time; Random; Blood; WB; Whole blood; Quantitative; QNT; Quant; Quan; Chemistry
ru-RU Russian (Russian Federation) Метгемогломин:МолКонц:ТчкВрм:Кр:Колич:
Synonyms: Количественный Кровь Молярность;Молярная объёмная концентрация Точка во времени;Момент
tr-TR Turkish (Turkey) Methemoglobin:SubKons:Zmlı:Kan:Kant:
zh-CN Chinese (China) 高铁血红蛋白:物质的量浓度:时间点:全血:定量型:
Synonyms: Hi;MetHb;MetHgb;正铁血红蛋白;氧化血红蛋白 克分子浓度;克分子浓度(单位体积);摩尔浓度;摩尔浓度(单位体积);物质的量浓度(单位体积) 化学;化学检验项目;化学检验项目类;化学类;化学试验;非刺激耐受型化学检验项目;非刺激耐受型化学检验项目类;非刺激耐受型化学试验;非刺激耐受型化学试验类 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 时刻;随机;随意;瞬间 血;血液

Example Units

Unit Source
mmol/L Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=56040-9