Version 2.80

Part Descriptions

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)

LP422982-1   BldCV
Central venous blood is blood found in the interior jugular or subclavian vein sampled via a central venous catheter. The composition of central venous blood is different from mixed venous blood, found in the pulmonary artery and also sampled via catheter, and peripheral venous blood, sampled via venipuncture. Central venous blood contains blood from the upper body, whereas mixed venous blood contains deoxygenated blood from the entire body. Source: LOINC

Fully-Specified Name

Component
Methemoglobin/Hemoglobin.total
Property
MFr
Time
Pt
System
BldCV
Scale
Qn
Method

Additional Names

Long Common Name
Methemoglobin/Hemoglobin.total in Central venous blood
Short Name
MetHgb MFr BldCV
Display Name
Methemoglobin (BldCV) [Mass fraction]
Consumer Name Alpha Get Info
Methemoglobin/Total Hgb, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.70
Last Updated
Version 2.70 (ADD)
Order vs. Observation
Observation

Member of these Panels

LOINC Long Common Name
97535-9 Gas panel - Central venous blood

Language Variants Get Info

Tag Language Translation
el-GR Greek (Greece) Μεθαιμοσφαιρίνη/Αιμοσφαιρίνη.ολική:MFr:Pt:BldCV:Qn:
Synonyms: MFr Αιμοσφαιρίνη Μεθαιμοσφαιρίνη
es-ES Spanish (Spain) Metahemoglobina/Hemoglobina.total:Fracción de masa:Punto temporal:Sangre venosa central:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Metahemoglobina / Hemoglobina total:Sr.:Punto temporal:Sangre Capilar Venosa:Cuantitativo:
fr-FR French (France) Méthémoglobine/hémoglobine totale:Fraction massique:Ponctuel:Sang veineux central:Numérique:
it-IT Italian (Italy) Metaemoglobina/Emoglobina.totale:MFr:Pt:Sangue CV:Qn:
Synonyms: Chimica Frazione di massa Metemoglobina Punto nel tempo (episodio) Sangue venoso centrale
nl-NL Dutch (Netherlands) methemoglobine/hemoglobine.totaal:massafractie:moment:centraal veneus bloed:kwantitatief:
zh-CN Chinese (China) 高铁血红蛋白/血红蛋白.总计:质量分数:时间点:中心静脉全血:定量型:
Synonyms: Hi;MetHb;MetHgb;正铁血红蛋白;氧化血红蛋白 MFr 中心静脉血;中心静脉血液 全体数量 全部 共计 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 总 总和 总数 总血红蛋白 总量 总额 时刻;随机;随意;瞬间 氧血红蛋白;血红朊;血红素;血色素 汇总

Example Units

Unit Source
% 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=97554-0