Version 2.80

Term Description

Used to report the carboxyhemoglobin level as a percent of the total hemoglobin using pulse oximetry. Note that conventional pulse oximeters are not used to measure carboxyhemoglobin because they use two wavelengths of light that does not allow distinction between carboxyhemoglobin, methemoglobin, and oxyhemoglobin. However, newer pulse oximeters use multiple wavelengths (e.g., seven, eight or twelve) that allow separate measurement of carboxyhemoglobin. PMID: 21459480

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

Fully-Specified Name

Component
Carboxyhemoglobin/Hemoglobin.total
Property
MFr
Time
Pt
System
BldA
Scale
Qn
Method
Pulse oximetry

Additional Names

Long Common Name
Carboxyhemoglobin/Hemoglobin.total in Arterial blood by Pulse oximetry
Short Name
COHgb % BldA PulseOx

Basic Attributes

Class
PULM
Type
Clinical
First Released
Version 2.63
Last Updated
Version 2.63 (ADD)
Order vs. Observation
Both

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Carboxyhämoglobin/Hämoglobin.gesamt:Massenfraktion:Zeitpunkt:Blut arteriell:Quantitativ:Pulsoximetrie
Synonyms: COHb; CO-Hemoglobin
el-GR Greek (Greece) Καρβοξυαιμοσφαιρίνη/Αιμοσφαιρίνη.ολική:MFr:Pt:Αρτηριακό αίμα:Qn:Παλμική οξυμετρία
Synonyms: MFr Αιμοσφαιρίνη Καρβοξυαιμοσφαιρίνη
es-ES Spanish (Spain) Carboxihemoglobina/Hemoglobina.total:Fracción de masa:Punto temporal:Sangre arterial:Qn:Oximetría de pulso
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Carboxihemoglobina / Hemoglobina total:Sr.:Punto temporal:BldA:Cuantitativo:Pulse oximetry
fr-CA French (Canada) Carboxyhémoglobine/Hémoglobine.totale:Fraction de masse:Temps ponctuel:Sang artériel:Quantitatif:Oxymétrie pulsée
fr-BE French (Belgium) Carboxyhémoglobine/Hémoglobine.totale:Fraction de masse:Temps ponctuel:Sang artériel:Quantitatif:Oxymétrie pulsée
Synonyms: Hb Hb.totale HbCO
it-IT Italian (Italy) Carbossiemoglobina/Emoglobina.totale:MFr:Pt:Sangue art:Qn:Pulsossimetria
Synonyms: Frazione di massa Gestione ventilazione polmonare Punto nel tempo (episodio) Sangue arterioso
nl-NL Dutch (Netherlands) carboxyhemoglobine/hemoglobine.totaal:massafractie:moment:arterieel bloed:kwantitatief:pulsoxymetrie
Synonyms: zuurstofsaturatiemeting
pl-PL Polish (Poland) Karboksyhemoglobina/hemoglobina całkowita:frakcja masowa:punkt w czasie:krew tętnicza:ilościowy:pulsoksymetria
Synonyms: Karboksyhemoglobina Karboksyhemoglobina/Hemoglobina całkowita
ru-RU Russian (Russian Federation) Карбоксигемоглобин/Гемоглобин.общий:МассДол:ТчкВрм:КрА:Колич:Пульсоксиметрия
Synonyms: Количественный Кровь артериальная Массовая доля Оксигемометрия;Гемоксиметрия Точка во времени;Момент
tr-TR Turkish (Turkey) Karboksihemoglobin/Hemoglobin.total:KütlFr:Zmlı:KanArt:Kant:Puls oksimetri
zh-CN Chinese (China) 碳氧血红蛋白/血红蛋白.总计:质量分数:时间点:动脉全血:定量型:脉搏血氧定量法
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 MFr 全体数量 全部 共计 动脉血 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 肺部测量指标与呼吸机管理 脉搏血氧测定法;脉搏血氧定量;脉搏血氧测定;脉搏血氧仪 血氧测定法

Example Units

Unit Source
% Example UCUM Units

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

CodeSystem lookup
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