Version 2.78

Part Description

LP21258-6   Oxygen saturation
Oxygen saturation (sO2) is defined as the ratio of oxyhemoglobin to "active" hemoglobin (oxyhemoglobin + deoxyhemoglobin). Some say the term oxygen saturation has been erroneously redefined with a denominator of "total" instead of "active" hemoglobin, an ambiguity that can sometimes create confusion when viewing reported values from different instruments (Anesth Analg. 2007 Dec;105(6 Suppl):S5-9.) Oxygen saturation is commonly measured by blood gas analyzers and pulse oximetry. Source: Regenstrief LOINC

Fully-Specified Name

Component
Oxygen saturation
Property
MFr
Time
Pt
System
BldMV
Scale
Qn
Method
Calculated from oxygen partial pressure

Additional Names

Long Common Name
Oxygen saturation Calculated from oxygen partial pressure in Mixed venous blood
Short Name
SaO2 % BldMV from pO2
Display Name
SaO2% Calculated from oxygen partial pressure (BldMV) [Mass fraction]
Consumer Name Alpha Get Info
SaO2%, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.46
Last Updated
Version 2.46
Order vs. Observation
Both

Formula (Readable)

SO2 = (23,400 * (pO23 + 150 * pO2)-1 + 1)-1

Member of these Groups Get Info

LOINC Group Group Name
LG33051-0 Oxygen saturation|MFr|Pt|Chal:None

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Sauerstoffsättigung:Massenfraktion:Zeitpunkt:Blut gemischt-venös:Quantitativ:Berechnet aus Sauerstoff-Partialdruck
Synonyms: O2-Sättigung
es-ES Spanish (Spain) Saturación de Oxígeno:Fracción de masa:Punto temporal:Sangre venosa mixta:Qn:Cálculo para la presióm parcial de oxígeno
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Saturación de oxígeno:Fracción de masa:Punto temporal:Sangre venosa mixta:Cuantitativo:Calculado a partir de la presión parcial de oxígeno
fr-CA French (Canada) Saturation en oxygène:Fraction de masse:Temps ponctuel:Sang veineux mélangé:Quantitatif:Calculée à partir de la pO2
fr-FR French (France) Oxygène saturation:Fraction massique:Ponctuel:Sang mêlé veineux:Numérique:Calculée à partir de la pression partielle en oxygène
fr-BE French (Belgium) Saturation en oxygène:Fraction de masse:Temps ponctuel:Sang veineux mélangé:Quantitatif:Calculé à partir de la ppO2
Synonyms: O2 SatO2
it-IT Italian (Italy) Saturazione dell'ossigeno:MFr:Pt:Sangue ven mis:Qn:Calcolato da pressione parziale ossigeno
Synonyms: Chimica Frazione di massa Punto nel tempo (episodio) Sangue venoso misto
nl-NL Dutch (Netherlands) zuurstofverzadiging:massafractie:moment:gemengd veneus bloed:kwantitatief:berekening uit partiële zuurstofdruk
pl-PL Polish (Poland) Wysycenie tlenem:frakcja masowa:punkt w czasie:krew żylna mieszana:ilościowy:wyliczone z ciśnienia parcjalnego tlenu
pt-BR Portuguese (Brazil) Saturação de Oxigênio::Pt:SgVenM:Qn:
ru-RU Russian (Russian Federation) Кислородом сатурация:МассДол:ТчкВрм:КрСмВ:Колич:Вычисленный по парциальному напряжению кислорода
Synonyms: Количественный Кровь смешанная венозная Массовая доля Насыщение кислородом Точка во времени;Момент
tr-TR Turkish (Turkey) Oksijen satürasyonu:KütlFr:Zmlı:KanKarşVen:Kant:Hesaplanmış oksijen parsiyal basıncından
Synonyms: Oksijen doymuşluğu
zh-CN Chinese (China) 氧饱和度:质量分数:时间点:混合静脉全血:定量型:依据氧分压计算
Synonyms: MFr O2;tO2;总氧;氧气 全血 - 混合静脉;全血 - 混合静脉性;混合静脉血;血液 - 混合静脉;血液 - 混合静脉性 利用氧分压的计算法（计算型方法） 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 时刻;随机;随意;瞬间 计算;计算型方法 饱和 饱和状态 饱和程度

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=74105-8