Version 2.78

Status Information

Status
DISCOURAGED
Comment
Most laboratories report this in moles. Double check with your lab for reporting units.
Map-To Long Common Name Mapping Guidance
22695-1 Carnitine/Creatinine [Molar ratio] in Urine

Term Description

"Carnitine" is an alternative way to say total carnitines which = free carnitine + acylcarnitines, or stated another way, unesterified + esterified carnitine.
Source: Regenstrief LOINC

Part Descriptions

LP14482-1   Carnitine
Carnitine is used to mean total carnitines, because historically total carnitine was measured by heating up the sample and breaking off the esters which provided pure carnitine. (Carnitine is also a single molecule which is described as free carnitine - with the acronym, C0). Aclycarnitine is not a single moiety but rather describes all of the esterified carnitines.
So Total carnitine = free carnitine(C0) + acylcarnitine = esterified + unesterified carnitine. Source: Regenstrief Help

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

Fully-Specified Name

Component
Carnitine/Creatinine
Property
MRto
Time
Pt
System
Urine
Scale
Qn
Method

Additional Names

Short Name
Carnitine/Creat Ur
Display Name
Carnitine/Creatinine (U) [Mass ratio]
Consumer Name Alpha Get Info
Carnitine/Creatinine, Urine

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
16734

Language Variants Get Info

Tag Language Translation
es-AR Spanish (Argentina) carnitina/creatinina:relación de concentración de masa:punto en el tiempo:orina:cuantitativo:
es-ES Spanish (Spain) Carnitina/Creatinina:Relacion de Masa:Punto temporal:Orina:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Carnitina / Creatinina:Relación de masa:Punto temporal:Orina:Cuantitativo:
et-EE Estonian (Estonia) Karnitiin/kreatiniin:MRto:Pt:U:Qn:
Synonyms: Juhuslik Kvantitatiivne Uriin
fr-CA French (Canada) Carnitine/Créatinine:Ratio de masse:Temps ponctuel:Urine:Quantitatif:
fr-BE French (Belgium) Carnitine/Créatinine:Ratio de masse:Temps ponctuel:Urine:Quantitatif:
Synonyms: Rapport de masse
it-IT Italian (Italy) Carnitina (C0)/Creatinina:MRto:Pt:Urine:Qn:
Synonyms: Chimica Punto nel tempo (episodio) Rapporto di Massa
ko-KR Korean (Korea, Republic Of) 카르니틴/크레아티닌:질량농도비:검사시점:뇨:정량:
nl-NL Dutch (Netherlands) carnitine/creatinine:massaverhouding:moment:urine:kwantitatief:
Synonyms: kreatinine
pt-BR Portuguese (Brazil) Carnitina (C0)/Creatinina:MCrto:Pt:Urina:Qn:
Synonyms: Carnitine.total; Creat; CR; mRto; Mass concentration ratio; Point in time; Random; Ur; UR; Urn; UA; Quantitative; QNT; Quant; Quan; Chemistry; UCr
ru-RU Russian (Russian Federation) Карнитин/Креатинин:МассОтн:ТчкВрм:Моча:Колич:
Synonyms: Количественный Масс отношение Точка во времени;Момент
tr-TR Turkish (Turkey) Karnitin/Kreatinin:KütlOr:Zmlı:İdrar:Kant:
zh-CN Chinese (China) 肉碱/肌酐:质量比率:时间点:尿液:定量型:
Synonyms: CR;Creat;肌氨酸酐;肌酸内酰胺;肌酸酐 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 时刻;随机;随意;瞬间 来自于同一体系的两种分析物的质量之比;质量比 肉碱（肉毒碱、三甲基羟基丁酰甜菜碱、卡尼丁）;三甲基羟基丁酰甜菜碱;卡尼丁;总肉毒碱;总肉碱;肉毒碱;肉毒碱.总;肉毒碱.总计;肉碱.总;肉碱.总计 肌酸内酰胺

Example Units

Unit Source
mg/g{creat} 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=13719-0