Left ventricular Ejection fraction by US.2D+Calculated by cube method   77890-2

LOINC Code


LOINC code77890-2
nameLeft ventricular Ejection fraction by US.2D+Calculated by cube method
descriptionThis term represents the left ventricular ejection fraction (LVEF) based on left ventricular (LV) end-diastolic and end-systolic volumes as calculated by the Cubed method from measurements taken during 2D cardiac echo. The Cubed method formula for LV end-diastolic volume = (LVIDd)^3, where LVIDd = left ventricular internal dimension at end-diastole, and the formula for LV end-systolic volume = (LVIDs)^3, where LVIDs = left ventricular internal dimension at end-systole. [PMID: 5017683]
statusACTIVE

Fully-Specified Name

componentEjection fraction
propertyVFr  =  Volume Fraction
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemHeart.ventricle.left
scaleQn  =  Quantitative:  The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256
methodUS.2D+Calculated by cube method

Additional Names

short nameLV EF US.2D+cube

Basic Attributes

classCARD.US
type2  Clinical
order vs. observationObservation
formula (readable)Ejection fraction=[(LV end-diastolic volume-LV end-systolic volume)/LV end-diastolic volume]*100
example UCUM units%
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org)
example unit%

Associated Observations

LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations.

History/Usage

first released
last updated2.52
last change typeMIN  - change to field other than name

Related Names

2D US
Calc
Calculation
CARD.US
Cardiac
Cardio
Cardiology
Echography
EF
Frac
Fract
Fractionation
Fractions
Heart Disease
Hrt
Hrt ventr
L
LT
LV
LVEF
Percent
Point in time
QNT
Quan
Quant
Quantitative
Random
Sonogram
Sonograph
Sonography
ULS
Ultrasound
Ultrasound - 2-dimensional
US.2D+cube
Ventricular
Volfr
Volume fraction

Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.

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