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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

LOINC Names Get Info

Fully-Specified Name
Methemoglobin/Hemoglobin.total:MFr:Pt:BldCV:Qn:
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

Part Model Get Info

  • Component
    Methemoglobin/Hemoglobin.total
    LP286513-9
    • Analyte
      Methemoglobin/Hemoglobin.total
      LP286513-9
      • Component Numerator
        Methemoglobin
        LP15729-4
        • Component Numerator Core
          Methemoglobin
          LP15729-4
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        Hemoglobin.total
        LP32069-4
        • Component Denominator Core
          Hemoglobin.total
          LP32069-4
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    MFr
    LP6831-4
  • Time
    Pt
    LP6960-1
  • System
    BldCV
    LP422982-1
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

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

LOINCLong Common Name
97535-9Gas panel - Central venous blood

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Methemoglobin/hemoglobin.celkový:Hmotnostní podíl:Časový bod:Krev centrální venózní:Kvantitativní:
el-GRGreek (Greece)Μεθαιμοσφαιρίνη/Αιμοσφαιρίνη.ολική:MFr:Pt:BldCV:Qn:
Synonyms: BldCV CHEM MFr Pt Qn Αιμοσφαιρίνη Αιμοσφαιρίνη.ολική Μεθαιμοσφαιρίνη
es-ESSpanish (Spain)Metahemoglobina/Hemoglobina.total:Fracción de masa:Punto temporal:Sangre venosa central:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Metahemoglobina / Hemoglobina total:Sr.:Punto temporal:Sangre Capilar Venosa:Cuantitativo:
fr-FRFrench (France)Méthémoglobine/hémoglobine totale:Fraction massique:Ponctuel:Sang veineux central:Numérique:
it-ITItalian (Italy)Metaemoglobina/Emoglobina.totale:MFr:Pt:Sangue CV:Qn:
Synonyms: Chimica Frazione di massa Metemoglobina Punto nel tempo (episodio) Sangue venoso centrale
nl-NLDutch (Netherlands)methemoglobine/hemoglobine.totaal:massafractie:moment:centraal veneus bloed:kwantitatief:
pl-PLPolish (Poland)Methemoglobina/hemoglobina.całkowita:frakcja masowa:punkt w czasie:krew z żyły centralnej:ilościowy:
Synonyms: Methemoglobina Methemoglobina/Hemoglobina całkowita
zh-CNChinese (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

UnitSource
%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