Version 2.77

Part Descriptions

LP15953-0   Xanthine
A purine base found in most body tissues and fluids, certain plants, and some urinary calculi. It is an intermediate in the degradation of adenosine monophosphate to uric acid, being formed by oxidation of hypoxanthine. The methylated xanthine compounds caffeine, theobromine, and theophylline and their derivatives are used in medicine for their bronchodilator effects. (Dorland, 28th ed) Source: National Library of Medicine, MeSH 2006

LP15953-0   Xanthine
Xanthine is a product on the pathway of purine degradation and is converted to uric acid by the action of the xanthine oxidase (xanthine dehydrogenase) enzyme. Some people lack sufficient xanthine oxidase, and thus xanthine cannot be converted to uric acid. This rare genetic disorder is called xanthinuria results from excessive excretion of xanthine into the urine. This disorder can result in urolithiasis and sometimes myopathy from xanthine deposition. Elevated xanthine can also result from allopurinol treatment. Xanthine is also the core chemical component of a group of alkaloids that are commonly used for their effects as mild stimulants and as bronchodilators, notably in treating the symptoms of asthma. Their effects, however, are widespread and their therapeutic range is narrow and so they are not the drug of choice in asthma treatment. Methylated xanthine derivatives include caffeine, theophylline, and theobromine (found mainly in chocolate). These drugs inhibit phosphodiesterase and antagonise adenoine. Source: Regenstrief LOINC

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
Xanthine/Creatinine
Property
SRto
Time
Pt
System
Urine
Scale
Qn
Method

Additional Names

Short Name
Xanthine/Creat Ur-sRto
Display Name
Xanthine/Creatinine (U) [Molar ratio]
Consumer Name Alpha Get Info
Xanthine/Creatinine, Urine

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.14
Last Updated
Version 2.73
Order vs. Observation
Both
Common Test Rank Get Info
7816

Member of these Panels

LOINC Long Common Name
79673-0 Purine and Pyrimidine panel - Urine
94397-7 Sulfocysteine, Hypoxanthine, Xanthine, Urate and Creatinine panel - Urine

Language Variants Get Info

Tag Language Translation
de-AT German (Austria) Synonyms: Xanthin/Kreatinin-Ratio /U
es-AR Spanish (Argentina) metanefrina/creatinina:relación de concentración de la sustancia:punto en el tiempo:orina:cuantitativo:
es-ES Spanish (Spain) Xantina/Creatinina:Relacion de Sustancia:Punto temporal:Orina:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Xantina / Creatinina:Proporción de sustancia:Punto temporal:Orina:Cuantitativo:
fr-CA French (Canada) Xanthine/Créatinine:Ratio de substance:Temps ponctuel:Urine:Quantitatif:
fr-FR French (France) Xanthine/créatinine:Moles ratio:Ponctuel:Urine:Numérique:
fr-BE French (Belgium) Xanthine/Créatinine:Ratio de substance:Temps ponctuel:Urine:Quantitatif:
it-IT Italian (Italy) Xantina/Creatinina:Srto:Pt:Urine:Qn:
Synonyms: Chimica Punto nel tempo (episodio) Rapporto di sostanza
ko-KR Korean (Korea, Republic Of) 크산틴/크레아티닌:물질구성비:검사시점:뇨:정량:
nl-NL Dutch (Netherlands) xanthine/creatinine:molaire verhouding:moment:urine:kwantitatief:
Synonyms: kreatinine
pt-BR Portuguese (Brazil) Xantina/Creatinina:SCrto:Pt:Urina:Qn:
Synonyms: ; Creat; CR; sRto; Substance concentration ratio; Point in time; Random; Ur; UR; Urn; UA; Quantitative; QNT; Quant; Quan; Chemistry; UCr
ru-RU Russian (Russian Federation) Ксантин/Креатинин:МольОтн:ТчкВрм:Моча:Колич:
Synonyms: Количественный Мольная доля;Молярная доля;Отношение концентраций Точка во времени;Момент
tr-TR Turkish (Turkey) Ksantin/Kreatinin:SOrn:Zmlı:İdrar:Kant:
Synonyms: SubsOranı
zh-CN Chinese (China) 黄嘌呤/肌酐:物质的量比率:时间点:尿液:定量型:
Synonyms: 2,6-二羟基嘌呤;花黄素;黄尿环;黄质 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 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
umol/mmol{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=38371-1