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Part Description

LP21418-6   Carboxyhemoglobin
Carboxyhemoglobin, a complex of hemoglobin and carbon monoxide, is a marker of exposure to inhaled carbon monoxide (CO). CO gas is produced from almost any fire as the result of incomplete combustion to CO2, and the normal individual will have about 1 or 2 % of their hemoglobin in the form of carboxyhemoglobin, and up to 5% depending on environmental circumstances. Smokers can have levels as high as 10% or even higher. Poisoning with CO generally results from improperly vented furnaces, automobile exhaust, and fires, with carboxyhemoglobin:hemoglobin ratios of 10-30% found in symptomatic individuals and 30-90% in fatalities. With a 230 fold greater affinity, inhaled CO avidly replaces oxygen at its hemoglobin binding site. In addition, replacing even one of the 4 sites of the hemoglobin tetramer with CO prevents dissociation of the remaining 3 oxygen moieties to tissue (known as left shift of O2 dissociation curve). As a result, hemoglobin remains red and skin color is rosy despite physiologic anoxia. Although measuring carboxyhemoglobin can confirm carbon monoxide poisoning, the level does not always correlate with the clinical picture; carbon monoxide poisoning involves other mechanisms as well, including binding to myoglobin, cytochrome oxidase, and direct effects on the central nervous system. Source: Regenstrief LOINC

LOINC Names Get Info

Fully-Specified Name
Carboxyhemoglobin:PrThr:Pt:Bld:Ord:Screen
Long Common Name
Carboxyhemoglobin [Presence] in Blood by Screen method
Short Name
COHgb Bld Ql Scn
Display Name
Carboxyhemoglobin Screen Ql (Bld)
Consumer Name Alpha Get Info
Carboxyhemoglobin, Blood

Part Model Get Info

  • Component
    Carboxyhemoglobin
    LP21418-6
    • Analyte
      Carboxyhemoglobin
      LP21418-6
      • Component Numerator
        Carboxyhemoglobin
        LP21418-6
        • Component Numerator Core
          Carboxyhemoglobin
          LP21418-6
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    PrThr
    LP217195-9
  • Time
    Pt
    LP6960-1
  • System
    Bld
    LP7057-5
    • System Core
      Bld
      LP7057-5
    • Super System
      NULL
       
  • Scale
    Ord
    LP7751-3
  • Method
    Screen
    LP6503-9

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.07
Last Updated
Version 2.73 (MIN)
Change Reason
The scale has been changed from ACnc to reflect new model for ordinal terms; The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation
Both
Common Test Rank Get Info
17672

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Karboxyhemoglobin:Přítomnost nebo práh:Časový bod:Krev:Ordinální:Screening toxikologický
de-DEGerman (Germany)Carboxyhämoglobin:Nachweis oder Schwellenwert:Zeitpunkt:Blut:Ordinal:Screening
Synonyms: COHb; CO-Hemoglobin
el-GRGreek (Greece)Καρβοξυαιμοσφαιρίνη:PrThr:Pt:Αίμα:Ord:Έλεγχος
Synonyms: CHEM Ord PrThr Pt Αίμα Έλεγχος Καρβοξυαιμοσφαιρίνη
es-ARSpanish (Argentina)carboxihemoglobina:concentración arbitraria:punto en el tiempo:sangre:ordinal:tamizaje
es-ESSpanish (Spain)Carboxihemoglobina:PrThr:Punto temporal:Sangre:Ord:Cribado toxicológico
es-MXSpanish (Mexico)Carboxihemoglobina:Presencia o umbral:Punto temporal:Sangre:Ordinal:Pantalla de toxicología
fr-CAFrench (Canada)Carboxyhémoglobine:Présence-Seuil:Temps ponctuel:Sang:Ordinal:Dépistage
fr-FRFrench (France)Carboxyhémoglobine:Présence/Seuil:Ponctuel:Sang:Qualitatif:Dépistage
fr-BEFrench (Belgium)Carboxyhémoglobine:PrThr:Temps ponctuel:Sang:Ordinal:Dépistage
Synonyms: HbCO
it-ITItalian (Italy)Carbossiemoglobina:PrThr:Pt:Sangue:Ord:Screening
Synonyms: Chimica Presenza o Soglia Punto nel tempo (episodio) Sangue Screening tossicologico
ko-KRKorean (Korea, Republic Of)일산화탄소 혈색소:임의농도:검사시점:전혈:순위척도:선별
nl-NLDutch (Netherlands)carboxyhemoglobine:aanwezigheid:moment:bloed:ordinaal:screening
pl-PLPolish (Poland)Karboksyhemoglobina:granica wykrywalności:punkt w czasie:krew:uporządkowany:metoda przesiewowa
Synonyms: Karboksyhemoglobina
pt-BRPortuguese (Brazil)Carboxihemoglobina:ACnc:Pt:SgTotal:Ord:Triagem
Synonyms: ; COHgb; Carboxyhemoglob; Carbon monoxide.hemoglobin; COHb; HbCO; Carbonyl hemoglobin; Carbonmonoxyhemoglobin; CO haemoglobin; CO hemoglobin; Carboxyhaemoglobin; Hemoglobin bound with carbon dioxide; Carbonyl Hgb; Carbonyl haemoglobin; Arbitrary concentration; Point in time; Random; Blood; WB; Whole blood; Ql; Ordinal; QL; Qualitative; Qual; Scn; Scr; Scrn; Chemistry
ru-RURussian (Russian Federation)Карбоксигемоглобин:PrThr:ТчкВрм:Кр:Пор:Скрининг
Synonyms: Кровь Порядковый Токсикологический скрининг Точка во времени;Момент
tr-TRTurkish (Turkey)Karboksihemoglobin:MevcEşik:Zmlı:Kan:Srl:Tarama
Synonyms: Mevcut
zh-CNChinese (China)碳氧血红蛋白:存在情况或阈值:时间点:全血:序数型:毒理学筛查试验
Synonyms: CO 血红蛋白;CO.血红蛋白;COHb;COHgb;一氧化碳.血红蛋白;羧络血红朊;羧络血红蛋白;羧血蛋白;羰络血红朊 依次型;分类顺序型;定性的;序数型（或称等级型）;性质上的;有序型;有序性分类应答;有序性分类结果;秩次型;等级型;筛查;顺序型 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 存在情况;存在;存在与否;是否存在;阈值;界值;界限;阀值;临界值;存在情况（存在、存在与否、是否存在）或阈值（界值、界限、阀值、临界值） 时刻;随机;随意;瞬间 筛查 筛查方法;筛查法;筛查试验 筛查试验 筛选试验 血;血液 过筛 过筛试验

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=32160-4