Version 2.77

Term Description

Ratio of a patient's IgG and albumin in CSF to the IgG and albumin in serum is of diagnostic value in a number of neurological disorders. Normally CSF albumin and IgG are derived from the serum, whereas in patients with active multiple sclerosis, the increased CSF IgG is believed to be synthesized within the CSF. The CSF Index is a calculated value which expresses the ratio of IgG to albumin in CSF, to the ratio of IgG to albumin in serum. An elevated ratio suggests local CNS synthesis of IgG. An increased CSF/IgG Index is found in diseases such as MS, neurosyphilis, subacute sclerosing panencephalitis (SSPE), chronic CNS infections and CNS lupus erythematosus.
Source: Regenstrief LOINC

Fully-Specified Name

Component
IgG clearance/Albumin clearance
Property
Ratio
Time
Pt
System
Ser+CSF
Scale
Qn
Method

Additional Names

Short Name
IgG/Alb clear Ser+CSF-Rto
Display Name
IgG clearance/Albumin clearance (S+CSF) [Ratio]
Consumer Name Alpha Get Info
IgG Clearance/Albumin Clearance, Serum+Cereospinal Fluid

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0k
Last Updated
Version 2.73
Order vs. Observation
Observation
Common Test Rank Get Info
2067

Formula (Readable)

IgG index = (IgG, CSF/IgG, serum)/(albumin, CSF/albumin,serum)

Member of these Panels

LOINC Long Common Name
55121-8 Multiple sclerosis panel - Serum and CSF

Language Variants Get Info

Tag Language Translation
de-AT German (Austria) Synonyms: IgG-Index
de-DE German (Germany) IgG Clearance/Albumin-Clearance:Verhältnis:Zeitpunkt:Serum und Liquor:Quantitativ:
Synonyms: Zerebrospinalflüssigkeit
es-AR Spanish (Argentina) IgG [Inmunoglobulina G]/albúmina:relación:punto en el tiempo:suero+líquido cefalorraquídeo:cuantitativo:
es-ES Spanish (Spain) IgG Aclaramiento/Albúmina Aclaramiento:Fracción:Punto temporal:Suero y Líquido Cefalorraquideo simultaneamente:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Aclaramiento de IgG / Aclaramiento de albúmina:Proporción:Punto temporal:Suero y LCR:Cuantitativo:
fr-CA French (Canada) IgG , Clairance/Albumine , Clairance:Ratios:Temps ponctuel:Sérum+LCR:Quantitatif:
fr-FR French (France) Immunoglobuline G clairance/Albumine clairance:Ratio:Ponctuel:Sérum+Liquide céphalorachidien:Numérique:
it-IT Italian (Italy) IgG , clearance/Albumina , clearance:Rapporto:Pt:Siero+LCS:Qn:
Synonyms: Chimica Liquido cerebrospinale Punto nel tempo (episodio) Siero Siero & LCS
ko-KR Korean (Korea, Republic Of) 면역글로불린 G 지수:상대율:검사시점:혈청+뇌척수액:정량:
nl-NL Dutch (Netherlands) IgG klaring/albumine klaring:verhouding:moment:serum en liquor cerebrospinalis:kwantitatief:
pl-PL Polish (Poland) IgG klirens/albumina klirens:współczynnik:punkt w czasie:surowica i płyn mózgowo-rdzeniowy:ilościowy:
Synonyms: IgG Klirens IgG Klirens IgG/Klirens albuminy
pt-BR Portuguese (Brazil) IgG índice:RelRto:Pt:Soro+LCR:Qn:
Synonyms: Immune globulin G; Immunoglobulin G; Relative ratio; Point in time; Random; Serum; SR; Cerebral spinal fluid; Spinal Fluid; Cerebrospinal Fl; Spinal Flu; Spinal Fld; Quantitative; QNT; Quant; Quan; Chemistry
ru-RU Russian (Russian Federation) IgG Клиренс/Альбумин Клиренс:Отношение:ТчкВрм:Сыв+ЦСЖ:Колич:
Synonyms: Количественный Коэффициент;Соотношение;Пропорция Сыворотка Сыворотка и цереброспинальная жидкость Точка во времени;Момент Цереброспинальная жидкость
tr-TR Turkish (Turkey) IgG Klirens/Albumin Klirens:Oran:Zmlı:Ser+BOS:Kant:
zh-CN Chinese (China) IgG 清除/白蛋白 清除:比率:时间点:血清+脑脊液:定量型:
Synonyms: Alb;清蛋白;白;白朊;蛋白素;蛋白胚乳;蛋白质.白蛋白;血液制品 - 白蛋白 CSF CSF;脊髓液;Cerebral spinal fluid;脑脊髓液 免疫球蛋白 G 化学;化学检验项目;化学检验项目类;化学类;化学试验;非刺激耐受型化学检验项目;非刺激耐受型化学检验项目类;非刺激耐受型化学试验;非刺激耐受型化学试验类 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 廓清 廓清;清除率;廓清率 廓清率 时刻;随机;随意;瞬间 来自于不同体系的两个观察指标之比;比;比值 清除率 脊液 脊髓液 脑脊液（Cerebral spinal fluid，CSF） 脑脊髓液 血清 & 脑脊液;血清 & 脑脊髓液;血清+脑脊髓液;血清与脑脊液;血清与脑脊髓液

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=14117-6