Version 2.78

Term Description

This term represents the left ventricular ejection fraction (LVEF) based on left ventricular (LV) end-diastolic and end-systolic volumes as calculated by the Teichholz method from measurements taken during 2D cardiac echo. The Teichholz formula is used to calculate left ventricular volume as follows: LV end-diastolic volume = [7/2.4 + Dd]x[Dd]^3, where Dd = the left ventricular internal dimension (short axis) as measured at end-diastole, and LV end-systolic volume = [7/2.4 + Ds]x[Ds]^3, where Ds = the left ventricular internal dimension (short axis) as measured at end-systole. PMID: 1244736
Source: Regenstrief LOINC

Part Description

LP35012-1   Ejection fraction
In cardiovascular physiology, ejection fraction (Ef) is the fraction of blood pumped out of a ventricle with each heart beat. The term ejection fraction applies to both the right and left ventricles; one can speak equally of the left ventricular ejection fraction (LVEF) and the right ventricular ejection fraction (RVEF). Without a qualifier, the term ejection fraction refers specifically to that of the left ventricle. 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, Ejection fraction (Wikipedia)

Fully-Specified Name

Component
Ejection fraction
Property
VFr
Time
Pt
System
Heart.ventricle.left
Scale
Qn
Method
US.2D+Calculated by Teichholz method

Additional Names

Short Name
LV EF 2D Teichholz

Basic Attributes

Class
CARD.US
Type
Clinical
First Released
Version 2.52
Last Updated
Version 2.54
Order vs. Observation
Observation

Formula (Readable)

Ejection fraction=[(LV end-diastolic volume-LV end-systolic volume)/LV end-diastolic volume]*100

Language Variants Get Info

Tag Language Translation
es-MX Spanish (Mexico) Fracción de eyección:VFr:Punto temporal:Corazón.ventrículo.izquierdo:Cuantitativo:US.2D+Calculated by Teichholz method
it-IT Italian (Italy) Frazione di eiezione:VFr:Pt:Cuore.ventricolo.sinistro:Qn:Eco.2D+Cacolata da metodo Teichholz
Synonyms: Eco Ecografia 2D Ecografia 2D.calcolata Ecografia cardiaca FE Frazione di Volume Punto nel tempo (episodio) Ventricolo cardiaco Ventricolo cardiaco Sinistro
zh-CN Chinese (China) 射血分数:体积分数:时间点:心脏.心室.左侧:定量型:超声.2D+Teichholz 计算法
Synonyms: EF;喷血分数 L LT 二维超声;二维超声检查;超声.二维;超声检查.2D;超声检查.二维 分数 分数类 分级 分级分离 分部分离 分馏 分馏（Fractionation） 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 向左 向左侧 容积分数 左 左侧（Left，LT，L） 左向 左心室;心.室.左侧;心.心室.左侧;心脏.室.左侧 左边 心 心.室;心.心室;心室;心脏.室 心脏病学 心脏病学.超声;心脏超声 时刻;随机;随意;瞬间 精馏 组份（Fraction） 组份类 组份类（Fractions） 组分 组分类 计算;计算型方法 超声.二维+Teichholz 计算法 超声.二维+计算法 超声检查方法;超声检查法;超声波;超声波检查方法;超声波检查法 部分 部分类 馏分 馏分类

Example Units

Unit Source
% Example UCUM Units

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

CodeSystem lookup
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