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Term Description

Inulin is measured to evaluate kidney function by determining the glomerular filtration rate (GFR) -- the flow rate of filtered fluid through the kidney. Inulin is completely filtered at the glomerulus, allowing the clearance of inulin to be used as a highly accurate measure of GFR. The submitter laboratory's testing approach is to collect samples every 30 minutes up to 240 minutes after an 18 hour infusion with inulin (long test) or after an initial bolus injection (short test).

Inulin is uniquely treated by nephrons in that it is completely filtered at the glomerulus but neither secreted nor reabsorbed by the tubules. This property of inulin allows the clearance of inulin to be used clinically as a highly accurate measure of glomerular filtration rate (GFR).
Source: Regenstrief LOINC

Part Descriptions

LP15675-9   Inulin
A starch found in the tubers and roots of many plants. Since it is hydrolyzable to fructose, it is classified as a fructosan. It has been used in physiologic investigation for determination of the rate of glomerular function. Source: National Library of Medicine, MeSH 2006

LP20516-8   1.73 sq M
The average (normal) BSA for an adult is take today 1.73 square meters. so this value is often used as an adjustment in the cases where BSA adjustment is needed and the exact BSA is not known Source: Regenstrief Help

LOINC Names Get Info

Fully-Specified Name
Inulin renal clearance/1.73 sq M:ArVRat:Stdy:Urine+Ser/Plas:Qn:
Long Common Name
Inulin renal clearance/1.73 sq M in Urine and Serum or Plasma
Short Name
Inulin Cl/1.73 sq M Ur+SerPl-ArVRat
Display Name
Inulin renal clearance/1.73 sq M (Stdy U+S/P) [Vol rate/Area]
Consumer Name Alpha Get Info
Inulin renal clearance/1.73 Sq M, Urine+Blood

Part Model Get Info

  • Component
    Inulin renal clearance/1.73 sq M
    LP286282-1
    • Analyte
      Inulin renal clearance/1.73 sq M
      LP286282-1
      • Component Numerator
        Inulin renal clearance
        LP228720-1
        • Component Numerator Core
          Inulin
          LP15675-9
        • Component Numerator Core Suffix
          renal clearance
          LP33137-8
      • Component Denominator
        1.73 sq M
        LP20516-8
        • Component Denominator Core
          1.73 sq M
          LP20516-8
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    ArVRat
    LP6787-8
  • Time
    Stdy
    LP6967-6
    • Time Core
      Stdy
      LP6967-6
    • Time Modifier
      NULL
       
  • System
    Urine+Ser/Plas
    LP32517-2
    • System Core
      Urine+Ser/Plas
      LP32517-2
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
DRUG/TOX
Type
Laboratory
First Released
Version 2.42
Last Updated
Version 2.69 (MAJ)
Change Reason
Release 2.69: TIME_ASPCT: This time period can vary depending on number of samples taken and is not always set at 4 hours, so time aspect changed to Stdy, with the intention to mean "over the period of the study".;
Order vs. Observation
Both

Formula (Readable)

Inulin renal clearance (mL/min/1.73 sq M) = (Urine Conc Inulin) X (Volume rate of urine) / (Plasma conc inulin), adjusted for body surface area

Member of these Panels

LOINCLong Common Name
96403-1Renal clearance and Renal plasma flow panel - Urine and Serum or Plasma

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Clearance inulinu/1,73 m2:Objemový tok/plocha:Studie:Moč a sérum/plazma:Kvantitativní:
el-GRGreek (Greece)Ινουλίνη νεφρική κάθαρση/1,73 sq M:ArVRat:Stdy:Ούρα+Ορός/Πλάσμα:Qn:
Synonyms: 1,73 sq M ArVRat DRUG/TOX M Qn Stdy Ινουλίνη Κάθαρση Νεφρική νεφρική κάθαρση Ορός Ορός/Πλάσμα Ούρα Ούρα+Ορός/Πλάσμα Πλάσμα
es-ESSpanish (Spain)Inulina Aclaramiento renal/1.73 metros2:Indice de Volumen/Área:Estudio:Orina y suero o plasma:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Aclaramiento renal de inulina / 1,73 m2:Tasa de volumen / área:Estudio:Orina y suero o plasma:Cuantitativo:
fr-CAFrench (Canada)Inuline, Clairance rénale/1,73 m carré:Taux de volume de l'aire:Étude:Urine+Sérum/Plasma:Quantitatif:
fr-FRFrench (France)Inuline clairance rénale/1,73m2:Volume arbitraire/Temps:Étude:Urine+Sérum/Plasma:Numérique:
fr-BEFrench (Belgium)Inuline Clairance rénale/1,73 m carré:Taux de volume de l'aire:Étude:Urine+Sérum/Plasma:Quantitatif:
it-ITItalian (Italy)Inulina Clearance renale/1,73 m2:ArVRat:Studio:Urina+Siero/Plasma:Qn:
Synonyms: Livelli farmacologici e tossicologia Plasma Siero Siero o Plasma Tasso Volume/Area Urine & Siero o Plasma
nl-NLDutch (Netherlands)inuline renale klaring/1,73 m2:filtratiesnelheid/oppervlakte:onderzoek:urine en serum of plasma:kwantitatief:
ru-RURussian (Russian Federation)Инулин почечный клиренс/1,73 кв м:ПлощадьОбСкор:Исслед:Моча+Сыв/Плаз:Колич:
Synonyms: Исследование Количественный Моча и Сыворотка или Плазма Объёмная скорость/Площадь Плазма Сыворотка Сыворотка или Плазма
tr-TRTurkish (Turkey)İnülin renal klirens/1.73 M kare:AlanVHz:Çlşm:İdrar+Ser/Plaz:Kant:
zh-CNChinese (China)菊糖 肾脏清除率/1.73 平方米:单位面积体积速率:检查过程持续时间:尿液+血清/血浆:定量型:
Synonyms: 1.73 sq M M 型 Sq M 关于肾脏的 单位面积的体积速率;每个单位的单位时间体积;体积速率/面积比率 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 土木香粉;旋复花粉;旋覆花素;菊淀粉;菊粉 尿 & 血清或血浆;尿+血清/血浆;尿与血清或血浆;尿液 & 血清或血浆;尿液与血清或血浆 尿;小便;下泉 平方米（Square Meter，Sq M） 廓清 廓清;清除率;廓清率 廓清率 检查;检查持续时间;检查过程 毒品 毒品类 清除率 肾 肾;肾脏的;肾的;与肾脏相关的 肾清除;肾清除率;肾脏清除 肾的 肾脏的 药品类 药物 药物/毒理学;药物/毒理学试验;药物毒理学试验;药物毒理学试验类 药物类 血清或血浆

Example Units

UnitSource
mL/min/{1.73_m2}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=72159-7