Version 2.80

Status Information

Status
DEPRECATED
Reason
Duplicate
Map-To Long Common Name Mapping Guidance
8120-8 CD21 cells/cells in Blood

Part Descriptions

LP68350-5   CD21
Complement component (3d/Epstein Barr virus) receptor 2, also known as CR2 and CD21, is a protein involved in the complement system. It binds to C3d. B cells have CR2 receptors on their surfaces, allowing the complement system to play a role in B-cell activation and maturation complement component receptor-2 (CR2) is the membrane protein on B lymphocytes to which the Epstein-Barr virus (EBV) binds during infection of these cells. Yefenof et al. (1976) found complete overlapping of EBV receptors and C3 receptors on human B lymphocytes. 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 , CD21

LP20029-2   CD21
Found on mature B-cells.
Associated with some mature B-cell neoplasms, including B-cell CLL and Follicular lymphoma Source: Regenstrief LOINC

Fully-Specified Name

Component
CD21
Property
ACnc
Time
Pt
System
WBC
Scale
Qn
Method

Additional Names

Long Common Name
Deprecated CD21 cells/100 cells in Blood
Short Name
Deprecated CD21 WBC-aCnc
Display Name
CD21 Qn (WBC)
Consumer Name Alpha Get Info
CD21, White blood cells

Basic Attributes

Class
CELLMARK
Type
Laboratory
First Released
Version 1.0
Last Updated
Version 2.69 (MIN)

Language Variants Get Info

Tag Language Translation
el-GR Greek (Greece) CD21:ACnc:Pt:Αριθμός λευκών αιμοσφαιρίων:Qn:
Synonyms: ACnc CD21
es-AR Spanish (Argentina) CD21:concentración arbitraria:punto en el tiempo:leucocito:cuantitativo:
es-ES Spanish (Spain) CD21:Concentración arbitraria:Punto temporal:Células sanguineas blancas:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) CD21:Concentración arbitraria:Punto temporal:células blancas de la sangre:Cuantitativo:
et-EE Estonian (Estonia) CD21:Acnc:Pt:WBC:Qn:
Synonyms: Juhuslik Kvantitatiivne Leukotsüüdid
fr-CA French (Canada) CD21:Concentration arbitraire:Temps ponctuel:Leucocytes:Quantitatif:
fr-BE French (Belgium) CD21:Concentration arbitraire:Temps ponctuel:Leucocytes:Quantitatif:
it-IT Italian (Italy) CD21:ACnc:Pt:WBC:Qn:
Synonyms: Concentrazione Arbitraria Globuli bianchi Modelli di superficie cellulare Punto nel tempo (episodio)
nl-NL Dutch (Netherlands) CD21:eenheid/volume:moment:leukocyten:kwantitatief:
Synonyms: witte bloedcellen
pl-PL Polish (Poland) CD21:stężenie w jednostkach umownych:punkt w czasie:leukocyty:ilościowy:
Synonyms: CD21
pt-BR Portuguese (Brazil) CD21:ACnc:Pt:Leucoc:Qn:
Synonyms: Arbitrary concentration; Point in time; Random; Leukocytes; White blood cells; Leucocs; Quantitative; QNT; Quant; Quan; B-2; B2; CR2; C3d receptor; Epstein Barr virus receptor; EBV-R; CELL MARKERS
ru-RU Russian (Russian Federation) CD21:ПроизвКонц:ТчкВрм:Лейкоциты:Колич:
Synonyms: Количественный Произвольная концентрация Точка во времени;Момент
tr-TR Turkish (Turkey) CD21:SçKons:Zmlı:Lökosit:Kant:
Synonyms: WBC
zh-CN Chinese (China) CD21:任意型浓度:时间点:白细胞:定量型:
Synonyms: B2 B-2 C3d 受体 CR2 EBV-R Epstein Barr 病毒受体（Epstein Barr virus receptor，EBV-R，EB 病毒受体） WBC;WBCs;白血球;白血细胞 任意型浓度(单位体积);任意浓度;单位体积的任意单位数;人工型浓度 发现于成熟 B-细胞之上。与某些成熟 B-细胞肿瘤相关，包括 B-细胞慢性淋巴细胞白血病以及滤泡性淋巴瘤。 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 时刻;随机;随意;瞬间 细胞标志物

Example Units

Unit Source
[arb'U]/mL Example UCUM Units

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=5449-4