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Term Description

Functional C1 esterase inhibitor is reported as % means "percent of functional over mean normal" by many commonly used kits. This is reported by LOINC code 48494-9. Many sites have incorrectly mapped to LOINC 10634-4 (functional /Total) which is not the component reported by the commonly used methods.

Part Description

LP14797-2   Complement C1 esterase inhibitor
The C1 esterase inhibitor assay is used to diagnose hereditary angioneurotic edema. Exhaustion of C1 esterase inhibitor allows spontaneous auto-catalytic C1 activation and the break down of C2 and C components. The disease can be caused by low concentrations or the abnormal structure of the protein. The disease is inherited as an autosomal dominant trait and has been successfully treated with prednisolone and transfusion of fresh frozen plasma. Source: Regenstrief Institute

Reference Information

TypeSourceReference
Package InsertWilhelminenspitalExample package insert. This LOINC code is not constrained to this specific product. Berichrom* C1-Inhibitor [package insert]. Marburg, Germany: Dade Behring Marburg GmbH; 2003

LOINC Names Get Info

Fully-Specified Name
Complement C1 esterase inhibitor actual/Normal:RelCCnc:Pt:Ser/Plas:Qn:
Long Common Name
Complement C1 esterase inhibitor actual/normal in Serum or Plasma
Short Name
C1INH Act/Nor SerPl
Display Name
Complement C1 esterase inhibitor actual/normal [Rel catalytic activity/Vol]
Consumer Name Alpha Get Info
Complement C1 Esterase Inhibitor actual/normal, Blood

Part Model Get Info

  • Component
    Complement C1 esterase inhibitor actual/Normal
    LP228143-6
    • Analyte
      Complement C1 esterase inhibitor actual/Normal
      LP228143-6
      • Component Numerator
        Complement C1 esterase inhibitor actual/Normal
        LP228143-6
        • Component Numerator Core
          Complement C1 esterase inhibitor
          LP14797-2
        • Component Numerator Core Suffix
          actual/normal
          LP29333-9
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    RelCCnc
    LP31739-3
  • Time
    Pt
    LP6960-1
  • System
    Ser/Plas
    LP7576-4
    • System Core
      Ser/Plas
      LP7576-4
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
HEM/BC
Type
Laboratory
First Released
Version 2.21
Last Updated
Version 2.73 (MIN)
Order vs. Observation
Both
Common Test Rank Get Info
3278

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Komplement C1 inhibitor esterázy aktuální/normální:Relativní katalytická koncentrace:Časový bod:Sérum/plazma:Kvantitativní:
de-ATGerman (Austria)Synonyms: C1-Inhibitor Akt.
de-DEGerman (Germany)Komplement C1-Esterase-Inhibitor Messwert/Normalwert:Relative katalytische Konzentration:Zeitpunkt:Serum oder Plasma:Quantitativ:
el-GRGreek (Greece)Αναστολέας εστεράσης συμπληρώματος C1 πραγματικό/φυσιολογικό:RelCCnc:Pt:Ορός/Πλάσμα:Qn:
Synonyms: HEM/BC Pt Qn RelCCnc Αναστολέας εστεράσης συμπληρώματος C1 Εστεράση Ορός Ορός/Πλάσμα Πλάσμα πραγματικό/φυσιολογικό
es-ESSpanish (Spain)Complemento inhibidor de C1 esterasa. actual/normal:Concentración catalítica relativa:Punto temporal:Suero o Plasma:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Complemento inhibidor de esterasa C1 actual / normal:Concentración catalítica relativa:Punto temporal:Suero o Plasma:Cuantitativo:
fr-CAFrench (Canada)Inhibiteur de la C1 estérase, Mesuré/normal:Concentration catalytique relative:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-FRFrench (France)Complément C1 estérase inhibiteur patient/témoin:Activité catalytique relative:Ponctuel:Sérum/Plasma:Numérique:
fr-BEFrench (Belgium)Inhibiteur de la C1 estérase Mesuré/normal:Concentration catalytique relative:Temps ponctuel:Sérum/Plasma:Quantitatif:
Synonyms: Mesuré/normal
it-ITItalian (Italy)Complemento C1 esterasi inibitore effettivo/normale:RelCCnc:Pt:Siero/Plasma:Qn:
Synonyms: Concentrazione Catalitica Relativa Ematologia (coagulazione) conta differenziale Plasma Punto nel tempo (episodio) Siero Siero o Plasma
nl-NLDutch (Netherlands)complement C1-esteraseremmer gemeten/normaal:relatieve enzymatische activiteit/normaal:moment:serum of plasma:kwantitatief:
Synonyms: gemeten/normaal
pl-PLPolish (Poland)Inhibitor C1 esterazy dopełniacza badane/prawidłowe:względne stężenie katalityczne:punkt w czasie:surowica lub osocze:ilościowy:
pt-BRPortuguese (Brazil)Complemento inibidor da C1 esterase verdadeiro/Normal:RelCCnc:Pt:Sor/Plas:Qn:
Synonyms: ; Est; C1INH; C1-INH; C1INA; C1 inactivator; C1 inhibiting factor; Comp; Complmt; Nor; RlCCnc; Point in time; Random; SerPl; SerPlas; SerP; Serum; SR; Plasma; Pl; Plsm; Quantitative; QNT; Quant; Quan; Act/Nor; Control; Inhib; Inhibit; HEMATOLOGY/CELL COUNTS; HEMATOLOGY/CELL COUNTS
ru-RURussian (Russian Federation)Комплемента С1 эстеразы ингибитор актуальный/нормальный:ОтнКаталКонц:ТчкВрм:Сыв/Плаз:Колич:
Synonyms: Количественный Относительная каталитическая концентрация Плазма Сыворотка Сыворотка или Плазма Точка во времени;Момент
tr-TRTurkish (Turkey)Kompleman C1 esteraz inhibitör gerçek/normal:GörKtlKons:Zmlı:Ser/Plaz:Kant:
zh-CNChinese (China)补体 C1 酯酶抑制剂 实际的/正常的:相对催化浓度:时间点:血清/血浆:定量型:
Synonyms: C1 抑制因子;C1 灭活剂;C1 灭活因子;C1INA;C1INH;C1-INH;补体 C1 酯酶抑制因子 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 实测值 实测值/正常值;实际/正常;实际值/正常值;实际测定值/正常值 实测的 实际值 对照 对照标准 对照物 对照的 抑制因子 抑制物 抑制物质 时刻;随机;随意;瞬间 正常的 血液学/细胞计数;血液学与细胞计数 血清或血浆

Example Units

UnitSource
%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=48494-9