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Part Descriptions

LP18445-4   N-acetyl-L-aspartate
N-Acetylaspartic acid, or N-acetylaspartate (NAA), is a derivative of aspartic acid with a formula of C6H9NO5 and a molecular weight of 175.139. 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, N-acetyl-L-aspartate

LP18445-4   N-acetyl-L-aspartate
N-acetyl-L-aspartate (NAA) normally occurs in high concentrations in the brain tissue, and its function is not well-understood. An elevation of NAA in urine and plasma is a marker of Canavan disease, a rare genetic disorder characterized by hypotonia, severe cognitive delay, blindness, demyelination and leukodystrophy, and typically death by 18 months of life. Canavan disease is caused by a mutation in the ASPA gene, which encodes aspartoacylase, the enzyme that metabolizes NAA. [OMIM: 271900] Source: Regenstrief LOINC, OMIM: 271900

LOINC Names Get Info

Fully-Specified Name
N-acetyl-L-aspartate:PrThr:Pt:Urine:Ord:
Long Common Name
N-acetyl-L-aspartate [Presence] in Urine
Short Name
N-Ac-L-Asp Ur Ql
Display Name
N-acetyl-L-aspartate Ql (U)
Consumer Name Alpha Get Info
N-acetyl-L-aspartate, Urine

Part Model Get Info

  • Component
    N-acetyl-L-aspartate
    LP18445-4
    • Analyte
      N-acetyl-L-aspartate
      LP18445-4
      • Component Numerator
        N-acetyl-L-aspartate
        LP18445-4
        • Component Numerator Core
          N-acetyl-L-aspartate
          LP18445-4
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    PrThr
    LP217195-9
  • Time
    Pt
    LP6960-1
  • System
    Urine
    LP7681-2
    • System Core
      Urine
      LP7681-2
    • Super System
      NULL
       
  • Scale
    Ord
    LP7751-3
  • Method
    NULL
     

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.09
Last Updated
Version 2.73 (MIN)
Change Reason
The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation
Both
Common Test Rank Get Info
10920

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)N-acetyl-L-aspartát:Přítomnost nebo práh:Časový bod:Moč:Ordinální:
de-ATGerman (Austria)Synonyms: N-Acetyl-L-Aspartat /U
el-GRGreek (Greece)Ν-ακετυλο-L-ασπαρτικό:PrThr:Pt:Ούρα:Ord:
Synonyms: CHEM N Ord PrThr Pt Ασπαρτικό Ν-ακετυλο-L-ασπαρτικό Ούρα
es-ARSpanish (Argentina)N-acetil-L-aspartato:concentración arbitraria:punto en el tiempo:orina:ordinal:
es-ESSpanish (Spain)N-acetil-L-aspartato:PrThr:Punto temporal:Orina:Ord:
es-MXSpanish (Mexico)N-acetil-L-aspartato:Presencia o umbral:Punto temporal:Orina:Ordinal:
et-EEEstonian (Estonia)N-atsetüül-L-aspartaat:PrThr:Pt:U:Ord:
Synonyms: Järgarvuline Juhuslik Uriin
fr-CAFrench (Canada)N-acétyl-l-aspartate:Présence-Seuil:Temps ponctuel:Urine:Ordinal:
fr-FRFrench (France)N-acétyl-L-aspartate:Présence/Seuil:Ponctuel:Urine:Qualitatif:
fr-BEFrench (Belgium)N-acétyl-l-aspartate:PrThr:Temps ponctuel:Urine:Ordinal:
it-ITItalian (Italy)N-acetil-L-aspartato:PrThr:Pt:Urine:Ord:
Synonyms: Chimica Presenza o Soglia Punto nel tempo (episodio)
ko-KRKorean (Korea, Republic Of)N-아세틸-L-아스파르테이트:임의농도:검사시점:뇨:순위척도:
nl-NLDutch (Netherlands)N-acetyl-L-aspartaat:aanwezigheid:moment:urine:ordinaal:
pt-BRPortuguese (Brazil)N-acetil-L-aspartato:ACnc:Pt:Urina:Ord:
Synonyms: ; N-Ac-L-Asp; NAA; Asp; Aspartic acid; Arbitrary concentration; Point in time; Random; Ur; UR; Urn; UA; Ql; Ordinal; QL; Qualitative; Qual; Screen; Left; Chemistry
ru-RURussian (Russian Federation)N-ацетил-L-аспартат:PrThr:ТчкВрм:Моча:Пор:
Synonyms: Порядковый Точка во времени;Момент
tr-TRTurkish (Turkey)N-asetil-L-aspartat:MevcEşik:Zmlı:İdrar:Srl:
Synonyms: Mevcut
zh-CNChinese (China)N-乙酰-L-天门冬氨酸:存在情况或阈值:时间点:尿液:序数型:
Synonyms: Asp;天冬氨酸;门冬氨酸 N 型 NAA;N-Ac-L-Asp;N-乙酰-L-天冬氨酸;N-乙酰-L-门冬氨酸;氮-乙酰基-L-天门冬氨酸 依次型;分类顺序型;定性的;序数型（或称等级型）;性质上的;有序型;有序性分类应答;有序性分类结果;秩次型;等级型;筛查;顺序型 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 存在情况;存在;存在与否;是否存在;阈值;界值;界限;阀值;临界值;存在情况（存在、存在与否、是否存在）或阈值（界值、界限、阀值、临界值） 尿;小便;下泉 左 左侧 左侧（Left，L） 时刻;随机;随意;瞬间

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=33299-9