Version 2.80

Part Descriptions

LP16352-4   Complement C1q
A subcomponent of complement C1, composed of six copies of three polypeptide chains (A, B, and C), each encoded by a separate gene (C1QA; C1QB; C1QC). This complex is arranged in nine subunits (six disulfide-linked dimers of A and B, and three disulfide-linked homodimers of C). C1q has binding sites for antibodies (the heavy chain of IMMUNOGLOBULIN G or IMMUNOGLOBULIN M). The interaction of C1q and immunoglobulin activates the two proenzymes COMPLEMENT C1R and COMPLEMENT C1S, thus initiating the cascade of COMPLEMENT ACTIVATION via the CLASSICAL COMPLEMENT PATHWAY. Source: National Library of Medicine, MeSH 2006

LP16352-4   Complement C1q
The complement system is a key part of the immune system and inflammatory response. The system has three pathways: 1) the classic pathway, 2) the alternative pathway, and 3) the lectin activation pathway. Complement (C1) is composed of 3 subunits: C1q, C1r, and C1s. Complement C1q initiates the complement pathway by binding to immunoglobulins. Absent or decreased levels of Complement C1q are seen in patients with acquired angioedema, systemic lupus erythematosus (SLE), polymyositis, and other immune complex diseases. Complement tests measure either the quantity or the activity (function) of complement proteins. In some cases, complement proteins are present but not functional, in which case a functional assay is used to detect the deficiency. Source: Regenstrief Institute

Fully-Specified Name

Component
Complement C1q
Property
MCnc
Time
Pt
System
Ser/Plas
Scale
Qn
Method

Additional Names

Long Common Name
Complement C1q [Mass/volume] in Serum or Plasma
Short Name
C1q SerPl-mCnc
Display Name
Complement C1q [Mass/Vol]
Consumer Name Alpha Get Info
Complement C1q, Blood

Basic Attributes

Class
HEM/BC
Type
Laboratory
First Released
Version 1.0
Last Updated
Version 2.73 (MIN)
Order vs. Observation
Both
Common Test Rank Get Info
3194

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Komplement C1q:Massenkonzentration:Zeitpunkt:Serum oder Plasma:Quantitativ:
el-GR Greek (Greece) Συμπλήρωμα C1q:MCnc:Pt:Ορός/Πλάσμα:Qn:
Synonyms: MCnc Συμπλήρωμα C1q
es-AR Spanish (Argentina) complemento C1Q:concentración de masa:punto en el tiempo:suero/plasma:cuantitativo:
es-ES Spanish (Spain) Complemento C1q:Concentración de masa:Punto temporal:Suero o Plasma:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Complemento C1q:Concentración de masa:Punto temporal:Suero o Plasma:Cuantitativo:
et-EE Estonian (Estonia) Komplemendi komponent C1q:MCnc:Pt:S/P:Qn:
Synonyms: Juhuslik Kvantitatiivne Plasma Seerum Seerum või plasma
fr-CA French (Canada) Complément C1q:Concentration de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-FR French (France) Complément C1q:Masse/Volume:Ponctuel:Sérum/Plasma:Numérique:
fr-BE French (Belgium) Complément C1q:Concentration de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
it-IT Italian (Italy) Complemento C1q:MCnc:Pt:Siero/Plasma:Qn:
Synonyms: Concentrazione di Massa Ematologia (coagulazione) conta differenziale Plasma Punto nel tempo (episodio) Siero Siero o Plasma
ko-KR Korean (Korea, Republic Of) 도움체 C1q:질량농도:검사시점:혈청/혈장:정량:
nl-NL Dutch (Netherlands) complement C1q:massa/volume:moment:serum of plasma:kwantitatief:
pt-BR Portuguese (Brazil) Complemento C1q:MCnc:Pt:Sor/Plas:Qn:
Synonyms: Complement c1q binding; Complmt; Comp; Mass concentration; Level; Point in time; Random; SerPl; SerPlas; SerP; Serum; SR; Plasma; Pl; Plsm; Quantitative; QNT; Quant; Quan; HEMATOLOGY/CELL COUNTS; HEMATOLOGY/CELL COUNTS
ru-RU Russian (Russian Federation) Комплемент C1q:МассКонц:ТчкВрм:Сыв/Плаз:Колич:
Synonyms: Количественный Массовая концентрация Плазма Сыворотка Сыворотка или Плазма Точка во времени;Момент
tr-TR Turkish (Turkey) Kompleman C1q:KütlKons:Zmlı:Ser/Plaz:Kant:
zh-CN Chinese (China) 补体 C1q:质量浓度:时间点:血清/血浆:定量型:
Synonyms: 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 水平;浓度;质量浓度(单位体积) 血液学/细胞计数;血液学与细胞计数 血清或血浆

Example Units

Unit Source
mcg/mL REGENSTRIEF
mg/dL REGENSTRIEF
ug/mL Example UCUM Units
ug/mL eCHN

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=4478-4