LOINC
Version 2.71

7797-4Rouleaux [Presence] in Blood by Light microscopyActive

Part Description

LP17684-9   Rouleaux
Rouleaux (singular rouleau) are stacks of red blood cells (RBCs) which form because of the unique discoid shape of RBCs in vertebrates. The flat surface of the discoid RBCs provides a large surface area that allows the cells to stick to each other, thus forming rouleaux. Rouleaux occurs when the plasma protein concentration is high, leading to increased erythrocyte sedimentation rate. The presence of rouleaux does not always indicate the presence of a disease. Conditions which cause rouleaux formation include infections, inflammatory and connective tissue disorders, and cancers. It also occurs in diabetes mellitus and is one of the causes leading to microvascular occlusions in diabetic retinopathy. 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, Rouleaux

Fully-Specified Name

Component
Rouleaux
Property
PrThr
Time
Pt
System
Bld
Scale
Ord
Method
Microscopy.light

Additional Names

Short Name
Rouleaux Bld Ql Smear
Display Name
Rouleaux LM Ql (Bld)
Consumer Name Alpha
Rouleaux, Blood

Basic Attributes

Class
HEM/BC
Type
Laboratory
First Released
Version 1.0h(2)
Last Updated
Version 2.70
Change Reason
The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation
Observation
Common US Lab Results Rank
1950
Common SI Lab Results Rank
1950

Reference Information

Type Source Reference
Mapping Guidance Regenstrief Help Most laboratories will report such findings as answers in their RBC morphology term [LOINC: 6742-1]. Others will report each observed finding as a separate variable, such as this one, and assign values of 1+, 2+, 3+. Mapper’s Guide for the Top 2000 plus LOINC Laboratory Observations

Member of these Panels

LOINC Long Common Name
57782-5 CBC W Ordered Manual Differential panel - Blood
57022-6 CBC W Reflex Manual Differential panel - Blood
24361-8 Deprecated Hemogram, platelets & Differential panel in Blood
34527-2 Deprecated Hemogram, Platelets, Differential & Reticulocyte panel in Blood
58408-6 Erythrocyte morphology panel - Blood
24359-2 Hemogram without Platelets and with Manual Differential panel - Blood
48808-0 Leukogram panel - Blood
24318-8 Manual Differential panel - Blood
34994-4 Smear morphology panel - Blood

Language Variants Get Info

zh-CNChinese (China)
缗钱状红细胞:存在情况或阈值:时间点:全血:序数型:显微镜检查.光学
nl-NLDutch (Netherlands)
rouleaux:aanwezigheid:moment:bloed:ordinaal:microscopie.licht
et-EEEstonian (Estonia)
Aglomeratsioon:PrThr:Pt:B:Ord:Valgusmikroskoopia
fr-BEFrench (Belgium)
Rouleaux:PrThr:Temps ponctuel:Sang:Ordinal:Microscopie.fond clair
fr-CAFrench (Canada)
Rouleaux:Présence-Seuil:Temps ponctuel:Sang:Ordinal:Microscopie.fond clair
fr-FRFrench (France)
Érythrocytes en rouleaux:Présence/Seuil:Ponctuel:Sang:Qualitatif:Microscopie optique
it-ITItalian (Italy)
Rouleaux:PrThr:Pt:Sangue:Ord:Microscopia.ottica
ko-KRKorean (Korea, Republic of)
연전현상:임의농도:검사시점:전혈:순위척도:편광현미경
pt-BRPortuguese (Brazil)
Rouleaux:ACnc:Pt:SgTotal:Ord:Microscopia optica
ru-RURussian (Russian Federation)
Монетный столбик:PrThr:ТчкВрм:Кр:Пор:Микроскопия.световой
es-ARSpanish (Argentina)
pila de monedas:concentración arbitraria:punto en el tiempo:sangre:ordinal:microscopia.luz
es-ESSpanish (Spain)
Hematíes en pilas de monedas:PrThr:Punto temporal:Sangre:Ord:Microscopía de luz
tr-TRTurkish (Turkey)
Rulo:MevcEşik:Zmlı:Kan:Srl:Mikroskopi.ışık

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=7797-4