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

LOINC Names Get Info

Fully-Specified Name
Tryptophan:SCnc:Pt:PRP:Qn:
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

Part Model Get Info

  • Component
    Tryptophan
    LP15931-6
    • Analyte
      Tryptophan
      LP15931-6
      • Component Numerator
        Tryptophan
        LP15931-6
        • Component Numerator Core
          Tryptophan
          LP15931-6
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    SCnc
    LP6860-3
  • Time
    Pt
    LP6960-1
  • System
    PRP
    LP7506-1
    • System Core
      PRP
      LP7506-1
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

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

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

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Tryptofan:Látková koncentrace:Časový bod:Plazma bohatá na trombocyty:Kvantitativní:
el-GRGreek (Greece)Τρυπτοφάνη:SCnc:Pt:PRP:Qn:
Synonyms: CHEM PRP Pt Qn SCnc Τρυπτοφάνη
es-ESSpanish (Spain)Triptófano:Concentración de sustancia:Punto temporal:Plasma rico en plaquetas:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Triptófano:Concentración de sustancias:Punto temporal:Plasma rico en plaquetas:Cuantitativo:
et-EEEstonian (Estonia)Trüptopfaan:SCnc:Pt:PRP:Qn:
Synonyms: Aine kontsentratsioon Juhuslik Kvantitatiivne Trombotsüütiderikas plasma
fr-CAFrench (Canada)Tryptophane:Concentration de substance:Temps ponctuel:Plasma riche en plaquettes:Quantitatif:
fr-FRFrench (France)Tryptophane:Moles/Volume:Ponctuel:Plasma riche en plaquettes:Numérique:
fr-BEFrench (Belgium)Tryptophane:Concentration de substance:Temps ponctuel:Plasma riche en plaquettes:Quantitatif:
it-ITItalian (Italy)Triptofano:SCnc:Pt:PRP:Qn:
Synonyms: Chimica Concentrazione di Sostanza Plasma ricco di piastrine Punto nel tempo (episodio)
nl-NLDutch (Netherlands)tryptofaan:mol/volume:moment:plaatjesrijk plasma:kwantitatief:
ru-RURussian (Russian Federation)Триптофан:МолКонц:ТчкВрм:БТП:Колич:
Synonyms: Богатая тромбоцитами плазма;Пластинками богатая плазма Количественный Молярность;Молярная объёмная концентрация Точка во времени;Момент
tr-TRTurkish (Turkey)Triptofan:SubKons:Zmlı:TZnP:Kant:
zh-CNChinese (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

UnitSource
nmol/LExample 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