LOINC
Version 2.73

2614-6Methemoglobin/Hemoglobin.total in BloodActive

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/Hemoglobin.total
Property
MFr
Time
Pt
System
Bld
Scale
Qn
Method

Additional Names

Short Name
MetHgb MFr Bld
Display Name
Methemoglobin (Bld) [Mass fraction]
Consumer Name Alpha
Methemoglobin/Total Hgb, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0
Last Updated
Version 2.73
Order vs. Observation
Both
Common US Lab Results Rank
696

Member of these Panels

LOINC Long Common Name
24343-6 Gas and Carbon monoxide panel - Blood
98902-0 Methemoglobin and sulfhemoglobin panel - Blood
62611-9 PhenX domain - Respiratory

Member of these Groups

LG9913-7 Methemoglobin/Hemoglobin.total|MFr|Pt|ANYBldSerPl

Language Variants Get Info

zh-CNChinese (China)
高铁血红蛋白/血红蛋白.总计:质量分数:时间点:全血:定量型:
nl-NLDutch (Netherlands)
methemoglobine/hemoglobine.totaal:massafractie:moment:bloed:kwantitatief:
et-EEEstonian (Estonia)
Methemoglobiin/hemoglobiin.üld:MFr:Pt:B:Qn:
fr-BEFrench (Belgium)
Méthémoglobine/Hémoglobine.totale:Fraction de masse:Temps ponctuel:Sang:Quantitatif:
fr-CAFrench (Canada)
Méthémoglobine/Hémoglobine.totale:Fraction de masse:Temps ponctuel:Sang:Quantitatif:
fr-FRFrench (France)
Méthémoglobine/hémoglobine totale:Fraction massique:Ponctuel:Sang:Numérique:
de-DEGerman (Germany)
Methämoglobin/Hämoglobin.gesamt:Massenfraktion:Zeitpunkt:Blut:Quantitativ:
it-ITItalian (Italy)
Metaemoglobina/Emoglobina.totale:MFr:Pt:Sangue:Qn:
ko-KRKorean (Korea, Republic of)
메트헤모글로빈/총혈색소:질량분획:검사시점:전혈:정량:
pt-BRPortuguese (Brazil)
Metahemoglobina/Hemoglobina.total:MFr:Pt:SgTotal:Qn:
ru-RURussian (Russian Federation)
Метгемогломин/Гемоглобин.общий:МассДол:ТчкВрм:Кр:Колич:
es-ARSpanish (Argentina)
metahemoglobina/hemoglobina.total:fracción de masa:punto en el tiempo:sangre:cuantitativo:
es-MXSpanish (Mexico)
Metahemoglobina / Hemoglobina total:Fracción de masa:Punto temporal:Sangre:Cuantitativo:
es-ESSpanish (Spain)
Metahemoglobina/Hemoglobina.total:Fracción de masa:Punto temporal:Sangre:Qn:
tr-TRTurkish (Turkey)
Methemoglobin/Hemoglobin.total:KütlFr:Zmlı:Kan:Kant:

Example Units

Unit Source
% eCHN
% Example UCUM Units
% REGENSTRIEF

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=2614-6