Version 2.77

Part Descriptions

LP15931-6   Tryptophan
Tryptophan is an amino acid and essential in human nutrition. It is one of the 20 amino acids in the genetic code (codon UGG). Only the L-stereoisomer appears in mammalian protein, however the D-stereoisomer is occasionally found in natural materials (for example, the marine venom peptide contryphan). 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, Tryptophan (Wikipedia)

LP15931-6   Tryptophan
An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals. Source: National Library of Medicine, MeSH 2006

LP15931-6   Tryptophan
Tryptophoan (or L-tryptophan) is an amino acid, a protein building block that can be found in many plant and animal proteins. L-tryptophan is called an "essential" amino acid because the body can't make it. It must be acquired from food. L-tryptophan is used for insomnia, sleep apnea, depression, anxiety, facial pain, a severe form of premenstrual syndrome called premenstrual dysphoric disorder (PMDD), smoking cessation, grinding teeth during sleep (bruxism), attention deficit-hyperactivity disorder (ADHD), Tourette's syndrome, and to improve athletic performance. L-tryptophan is naturally found in animal and plant proteins. L-tryptophan is considered an essential amino acid because our bodies can't make it. It is important for the development and functioning of many organs in the body. After absorbing L-tryptophan from food, our bodies convert it to 5-HTP (5-hyrdoxytryptophan), and then to serotonin. Serotonin is a hormone that transmits signals between nerve cells. It also causes blood vessels to narrow. Changes in the level of serotonin in the brain can alter mood. Source: Medline Plus, MedlinePlus: L-tryptophan

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
Tryptophan/Creatinine
Property
Ratio
Time
Pt
System
Urine
Scale
Qn
Method

Additional Names

Short Name
Tryptophan/Creat Ur-Rto
Display Name
Tryptophan/Creatinine (U) [Ratio]
Consumer Name Alpha Get Info
Tryptophan/Creatinine, Urine

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.00
Last Updated
Version 2.73
Order vs. Observation
Observation
Common Test Rank Get Info
6390

Member of these Panels

LOINC Long Common Name
35087-6 Amino acids panel - Urine

Member of these Groups Get Info

LOINC Group Group Name
LG35674-7 Tryptophan/Creatinine|Ratio|Urine

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Tryptophan/Creatinin:Verhältnis:Zeitpunkt:Urin:Quantitativ:
de-AT German (Austria) Synonyms: Tryptoph./Krea-Rto/U
es-MX Spanish (Mexico) Triptófano / Creatinina:Proporción:Punto temporal:Orina:Cuantitativo:
es-ES Spanish (Spain) Triptófano/Creatinina:Fracción:Punto temporal:Orina:Qn:
Synonyms: Cuantitativo
es-AR Spanish (Argentina) triptófano/creatinina:relación:punto en el tiempo:orina:cuantitativo:
et-EE Estonian (Estonia) Trüptopfaan/kreatiniin:Suhe:Pt:U:Qn:
Synonyms: Juhuslik Kvantitatiivne Uriin
fr-CA French (Canada) Tryptophane/Créatinine:Ratios:Temps ponctuel:Urine:Quantitatif:
fr-FR French (France) Tryptophane/créatinine:Ratio:Ponctuel:Urine:Numérique:
fr-BE French (Belgium) Tryptophane/Créatinine:Ratios:Temps ponctuel:Urine:Quantitatif:
it-IT Italian (Italy) Triptofano/Creatinina:Rapporto:Pt:Urine:Qn:
Synonyms: Chimica Punto nel tempo (episodio)
ko-KR Korean (Korea, Republic Of) 트립토판/크레아티닌:비율:검사시점:뇨:정량:
nl-NL Dutch (Netherlands) tryptofaan/creatinine:verhouding:moment:urine:kwantitatief:
Synonyms: kreatinine
pt-BR Portuguese (Brazil) Triptofano/Creatinina:Ratio:Pt:Urina:Qn:
Synonyms: c244; Trp; L-tryptophan; Creat; CR; Rto; Point in time; Random; Ur; UR; Urn; UA; Quantitative; QNT; Quant; Quan; Chemistry; UCr
ru-RU Russian (Russian Federation) Триптофан/Креатинин:Отношение:ТчкВрм:Моча:Колич:
Synonyms: Количественный Коэффициент;Соотношение;Пропорция Точка во времени;Момент
tr-TR Turkish (Turkey) Triptofan/Kreatinin:Oran:Zmlı:İdrar:Kant:
uk-UA Ukrainian (Ukraine) Триптофан/креатинін:Співвідношення:МоментЧасу:Сеча:Кількісно:
Synonyms: c244; Chemistry; CR; Crea; Creat; L-tryptophan; Point in time; QNT; Quan; Quant; Quantitative; Random; Ratios; Rto; Trp; UA; UCr; UR; Urn
zh-CN Chinese (China) 色氨酸/肌酐:比率:时间点:尿液:定量型:
Synonyms: B 吲哚基丙氨酸;Beta 吲哚基丙氨酸;L-色氨酸;Trp;β吲哚基丙氨酸 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 来自于不同体系的两个观察指标之比;比;比值 肌酸内酰胺

Example Units

Unit Source
umol/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=28608-8