Version 2.80

Term Description

Determination of tryptophan levels in platelet rich plasma is useful in diagnosing carcinoid tumors in patients with symptoms suggestive of carcinoid syndrome.

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

Fully-Specified Name

Component
Tryptophan
Property
SCnc
Time
Pt
System
PRP
Scale
Qn
Method

Additional Names

Long Common Name
Tryptophan [Moles/volume] in Platelet rich plasma
Short Name
Tryptophan PRP-sCnc
Display Name
Tryptophan (PRP) [Moles/Vol]
Consumer Name Alpha Get Info
Tryptophan, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.48
Last Updated
Version 2.48 (MIN)
Order vs. Observation
Both

Member of these Panels

LOINC Long Common Name
74545-5 Tryptophan-related indole profiling panel - Platelet rich plasma

Language Variants Get Info

Tag Language Translation
el-GR Greek (Greece) Τρυπτοφάνη:SCnc:Pt:PRP:Qn:
Synonyms: SCnc Τρυπτοφάνη
es-ES Spanish (Spain) Triptófano:Concentración de sustancia:Punto temporal:Plasma rico en plaquetas:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Triptófano:Concentración de sustancias:Punto temporal:Plasma rico en plaquetas:Cuantitativo:
et-EE Estonian (Estonia) Trüptopfaan:SCnc:Pt:PRP:Qn:
Synonyms: Aine kontsentratsioon Juhuslik Kvantitatiivne Trombotsüütiderikas plasma
fr-CA French (Canada) Tryptophane:Concentration de substance:Temps ponctuel:Plasma riche en plaquettes:Quantitatif:
fr-FR French (France) Tryptophane:Moles/Volume:Ponctuel:Plasma riche en plaquettes:Numérique:
fr-BE French (Belgium) Tryptophane:Concentration de substance:Temps ponctuel:Plasma riche en plaquettes:Quantitatif:
it-IT Italian (Italy) Triptofano:SCnc:Pt:PRP:Qn:
Synonyms: Chimica Concentrazione di Sostanza Plasma ricco di piastrine Punto nel tempo (episodio)
nl-NL Dutch (Netherlands) tryptofaan:mol/volume:moment:plaatjesrijk plasma:kwantitatief:
pt-BR Portuguese (Brazil) Triptofano::Pt:PRPQ:Qn:
ru-RU Russian (Russian Federation) Триптофан:МолКонц:ТчкВрм:БТП:Колич:
Synonyms: Богатая тромбоцитами плазма;Пластинками богатая плазма Количественный Молярность;Молярная объёмная концентрация Точка во времени;Момент
tr-TR Turkish (Turkey) Triptofan:SubKons:Zmlı:TZnP:Kant:
zh-CN Chinese (China) 色氨酸:物质的量浓度:时间点:富血小板血浆: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 克分子浓度;克分子浓度(单位体积);摩尔浓度;摩尔浓度(单位体积);物质的量浓度(单位体积) 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 富血小板血浆（Platelet rich plasma，PRP） 时刻;随机;随意;瞬间

Example Units

Unit Source
nmol/L 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=74767-5