76023-1

N-acetyl-L-aspartate/Creatinine [Molar ratio] in Urine

Active

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

LP32035-5 Creatinine
Creatinine or creatine anhydride, is a breakdown product of creatine phosphate in muscle. The loss of water molecule from creatine results in the formation of creatinine. It is transferred to the kidneys by blood plasma, whereupon it is eliminated by glomular filtration and partial tubular excretion. Creatinine is usually produced at a fairly constant rate and measuring its serum level is a simple test. A rise in blood creatinine levels is observed only with marked damage to functioning nephrons; therefore this test is not suitable for detecting early kidney disease. Creatine and creatinine are metabolized in the kidneys, muscle, liver and pancreas. Copyright Copyright ©2005-2009 Genome Alberta (Reference to original publication: Wishart DS, Knox C, Guo AC, et al. HMDB: a knowledgebase for the human metabolome. Nucleic Acids Res. 2009 37(Database issue):D603-610.) Source: Human Metabolome Database, Creatinine

LOINC Names Get Info

Fully-Specified Name: N-acetyl-L-aspartate/Creatinine:SRto:Pt:Urine:Qn:
Long Common Name: N-acetyl-L-aspartate/Creatinine [Molar ratio] in Urine
Short Name: N-Ac-L-Asp/Creat Ur-sRto
Display Name: N-acetyl-L-aspartate/Creatinine (U) [Molar ratio]
Consumer Name Alpha Get Info: N-acetyl-L-aspartate/Creatinine, Urine

Part Model Get Info

Component
N-acetyl-L-aspartate/Creatinine
LP286609-5
- Analyte
  N-acetyl-L-aspartate/Creatinine
  LP286609-5
  - Component Numerator
    N-acetyl-L-aspartate
    LP18445-4
    - Component Numerator Core
      N-acetyl-L-aspartate
      LP18445-4
    - Component Numerator Core Suffix
      NULL
  - Component Denominator
    Creatinine
    LP32035-5
    - Component Denominator Core
      Creatinine
      LP32035-5
    - Component Denominator Core Suffix
      NULL
- Challenge
  NULL
- Adjustment
  NULL
- Count
  NULL
Property
SRto
LP6868-6
Time
Pt
LP6960-1
- Time Core
  Pt
  LP6960-1
- Time Modifier
  NULL
System
Urine
LP7681-2
- System Core
  Urine
  LP7681-2
- Super System
  NULL
Scale
Qn
LP7753-9
Method
NULL

Basic Attributes

Class: CHEM
Type: Laboratory
First Released: Version 2.50
Last Updated: Version 2.73 (MIN)
Order vs. Observation: Both
Common Test Rank Get Info: 11785

Member of these Panels

LOINC	Long Common Name
48797-5	Organic acids panel - Urine

Language Variants Get Info

Tag	Language	Translation
cs-CZ	Czech (Czechia)	N-acetyl-L-aspartát/kreatinin:Látkový poměr:Časový bod:Moč:Kvantitativní:
de-AT	German (Austria)	Synonyms: N-Acetyl-Aspartat/Kreatinin-Ratio /U
el-GR	Greek (Greece)	Ν-ακετυλο-L-ασπαρτικό/Κρεατινίνη:SRto:Pt:Ούρα:Qn: Synonyms: CHEM N Pt Qn SRto Ασπαρτικό Κρεατινίνη Ν-ακετυλο-L-ασπαρτικό Ούρα
es-ES	Spanish (Spain)	N-acetil-L-aspartato/Creatinina:Relacion de Sustancia:Punto temporal:Orina:Qn: Synonyms: Cuantitativo
es-MX	Spanish (Mexico)	N-acetil-L-aspartato / Creatinina:Proporción de sustancia:Punto temporal:Orina:Cuantitativo:
fr-CA	French (Canada)	N-acétyl-l-aspartate/Créatinine:Ratio de substance:Temps ponctuel:Urine:Quantitatif:
fr-FR	French (France)	N-acétyl-L-aspartate/créatinine:Moles ratio:Ponctuel:Urine:Numérique:
fr-BE	French (Belgium)	N-acétyl-l-aspartate/Créatinine:Ratio de substance:Temps ponctuel:Urine:Quantitatif:
it-IT	Italian (Italy)	N-acetil-L-aspartato/Creatinina:Srto:Pt:Urine:Qn: Synonyms: Chimica Punto nel tempo (episodio) Rapporto di sostanza
nl-NL	Dutch (Netherlands)	N-acetyl-L-aspartaat/creatinine:molaire verhouding:moment:urine:kwantitatief: Synonyms: kreatinine
ru-RU	Russian (Russian Federation)	N-ацетил-L-аспартат/Креатинин:МольОтн:ТчкВрм:Моча:Колич: Synonyms: Количественный Мольная доля;Молярная доля;Отношение концентраций Точка во времени;Момент
tr-TR	Turkish (Turkey)	N-asetil-L-aspartat/Kreatinin:SOrn:Zmlı:İdrar:Kant: Synonyms: SubsOranı
zh-CN	Chinese (China)	N-乙酰-L-天门冬氨酸/肌酐:物质的量比率:时间点:尿液:定量型: Synonyms: Asp;天冬氨酸;门冬氨酸 CR;Creat;肌氨酸酐;肌酸内酰胺;肌酸酐 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 UCr 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;连续数值型标尺尿;小便;下泉尿液肌酐尿液肌酸酐尿肌酸酐左左侧左侧（Left，L）时刻;随机;随意;瞬间物质的量比值;物质的量比;摩尔比;摩尔比率;摩尔比值肌酸内酰胺

Example Units

Unit	Source
mmol/mmol{creat}	Example UCUM Units

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CodeSystem lookup: https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=76023-1

LOINC Copyright

Copyright © Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.