Left atrial End-systolic volume/Body surface area [Volume/Area] by US.2D+Calculated by area-length method 77907-4
LOINC Code
| LOINC code | 77907-4 | ||
|---|---|---|---|
| name | Left atrial End-systolic volume/Body surface area [Volume/Area] by US.2D+Calculated by area-length method | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | End-systolic volume/Body surface area | ||
| property | ArVol = Volume/Area | ||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||
| system | Heart.atrium.left | ||
| scale | Qn = 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 | ||
| method | US.2D+Calculated by area-length method | ||
Additional Names | |||
| short name | LA ES vol/BSA US.2D+A-L | ||
Basic Attributes | |||
| class | CARD.US | ||
| type | 2 Clinical | ||
| order vs. observation | Observation | ||
| formula (readable) | LA volume/BSA = {[8/(3 x Pi)][(A1 x A2)/L]}/BSA, where A1 and A2 represent left atrial area in the apical 2-chamber and 4-chamber views, respectively, and L is the shorter of the two left atrial lengths measured in the same 2- and 4-chamber views. | ||
| example UCUM units | mL/m2 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 | mL/m2 | ||
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 updated | 2.52 | ||
| last change type | MIN - change to field other than name | ||
Related Names | |||
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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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