75263-4

Blood group antibody screen [Presence] in Serum or Plasma by GEL

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Term Description

Antibody screening is used to demonstrate unexpected antibodies (other than ABO) and is performed on both donors and recipients to help ensure compatibility between recipient antibodies and donor red cells. GEL antibody testing (column agglutination technology) is an alternative to tube testing and uses a microtube with a reaction chamber containing dextran acrylamide gel and other elements. Red cells and plasma are added to the gel column top, incubated, and spun. In the microtubes filled with gel particles and anti-IgG, the particles separate the red cell clusters physically (larger agglutinates, less migration through gel) and the anti-IgG captures the IgG coated red cells and decreases their migration through the gel immunologically. For negative results, red cells appear in a button at the bottom of the microtube. For positive results, the red cells are stopped in areas throughout the microtube; the more positive the reaction, the higher the position in the tube. GEL testing can also be done without IgG in the gel (for ABO testing for example). Sensitivity is similar to PEG testing. GEL testing can be automated or performed manually.

Fully-Specified Name

Component: Blood group antibody
Property: PrThr
Time: Pt
System: Ser/Plas
Scale: Ord
Method: Blood group antibody screen.GEL

Additional Names

Long Common Name: Blood group antibody screen [Presence] in Serum or Plasma by GEL
Short Name: Bld gp Ab Scn SerPl Ql GEL
Display Name: Blood group antibody screen GEL Ql
Consumer Name Alpha Get Info: Blood group antibody screen, Blood

Example Answer List: LL360-9

Source: Regenstrief Institute

Answer	Code	Score	Answer ID
PositiveCopyright http://snomed.info/sct ID:10828004 Positive (qualifier value)			LA6576-8
NegativeCopyright http://snomed.info/sct ID:260385009 Negative (qualifier value)			LA6577-6

Basic Attributes

Class: BLDBK
Type: Laboratory
First Released: Version 2.48
Last Updated: Version 2.79 (NAM)
Change Reason: Release 2.79: COMPONENT: Triggered by Coll w SCT: Screen should be omitted from Component. It should be in Method.; Previous Releases: 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: Both
Common Test Rank Get Info: 498

Language Variants Get Info

Tag	Language	Translation
es-ES	Spanish (Spain)	Examen de anticuerpos de grupos sanguineos:PrThr:Punto temporal:Suero o Plasma:Ord:Gel
es-MX	Spanish (Mexico)	Examen de anticuerpos del grupo sanguíneo:Presencia o umbral:Punto temporal:Suero o Plasma:Ordinal:GEL
fr-FR	French (France)	Anticorps irréguliers (RAI) dépistage:Présence/Seuil:Ponctuel:Sérum/Plasma:Qualitatif:Gel
fr-CA	French (Canada)	Anticorps des groupes sanguins dépistage:Présence-Seuil:Temps ponctuel:Sérum/Plasma:Ordinal:GEL
it-IT	Italian (Italy)	Gruppo sanguigno,anticorpo:PrThr:Pt:Siero/Plasma:Ord:Gruppo sanguigno, screening anticorpo.GEL Synonyms: Banca del sangue GEL Gruppo sanguigno,screening anticorpo Plasma Presenza o Soglia Punto nel tempo (episodio) Screening anticorpo del guppo sanguigno Screening tossicologico Siero Siero o Plasma
pl-PL	Polish (Poland)	Skryning przeciwciał grup krwi:granica wykrywalności:punkt w czasie:surowica lub osocze:półilościowy:aglutynacja metodą mikrokolumnową
pt-BR	Portuguese (Brazil)	Triagem de anticorpos grupo sanguíneo::Pt:Soro/Plas:Ord:GEL
zh-CN	Chinese (China)	血型抗体:存在情况或阈值:时间点:血清/血浆:序数型:血型抗体筛查.GEL Synonyms: GEL 抗体检测法（柱凝集技术）;GEL antibody testing (column agglutination technology);葡聚糖丙烯酰胺凝胶抗体检测法依次型;分类顺序型;定性的;序数型（或称等级型）;性质上的;有序型;有序性分类应答;有序性分类结果;秩次型;等级型;筛查;顺序型存在情况;存在;存在与否;是否存在;阈值;界值;界限;阀值;临界值;存在情况（存在、存在与否、是否存在）或阈值（界值、界限、阀值、临界值）时刻;随机;随意;瞬间筛查筛查方法;筛查法;筛查试验筛查试验筛选试验血;全血血型抗体（Ab）血型抗体（Ab）筛查血型抗体（Ab）筛查.GEL（凝胶、凝胶试验）血库;血库检验;血库检验类;血库检验项目;血库检验项目类;血库类;血库试验;血库试验项目;血库试验项目类血清或血浆过筛过筛试验

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Copyright © 2025 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 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.