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Term Description

The tyrosine to phenylalanine ratio is one of the values used to screen newborns for Tyrosinemia types I, II and III.

Part Descriptions

LP15793-0   Tyrosine
Tyrosine is an aromatic amino acid and its urine levels rise in tyrosinemia, TNT (Transient Neonatal Tyrosinemia), cystinosis, hartnup disease, methionine malabsorption, and alkaptonuria. Source: Regenstrief Institute

LP70160-4   Phenylalanine
Phenylalanine is an essential alpha-amino acid. It exists in two forms, a D and an L form, which are enantiomers (mirror-image molecules) of each other. It has a benzyl side chain and its name comes from its chemical structures that consists of a phenyl group substituted for one of the hydrogens in the side chain of alanine. Because of its phenyl group, phenylalanine is an aromatic compound that at room temperature exists as a white, powdery solid. L -phenylalanine (LPA) is an electrically-neutral amino acid and its enantiomer, D -phenylalanine (DPA), can be synthesized artificially. L -phenylalanine can also be converted into L -tyrosine, another one of the twenty protein-forming amino acids. 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, Phenylalanine (Wikipedia)

LOINC Names Get Info

Fully-Specified Name
Tyrosine/Phenylalanine:SRto:Pt:Bld.dot:Qn:
Long Common Name
Tyrosine/Phenylalanine [Molar ratio] in DBS
Short Name
Tyrosine/Phe DBS-sRto
Display Name
Tyrosine/Phenylalanine (DBS) [Molar ratio]
Consumer Name Alpha Get Info
Tyrosine/Phenylalanine, Dried blood spot

Part Model Get Info

  • Component
    Tyrosine/Phenylalanine
    LP287320-8
    • Analyte
      Tyrosine/Phenylalanine
      LP287320-8
      • Component Numerator
        Tyrosine
        LP15793-0
        • Component Numerator Core
          Tyrosine
          LP15793-0
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        Phenylalanine
        LP70160-4
        • Component Denominator Core
          Phenylalanine
          LP70160-4
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    SRto
    LP6868-6
  • Time
    Pt
    LP6960-1
  • System
    Bld.dot
    LP21304-8
    • System Core
      Bld.dot
      LP21304-8
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.46
Last Updated
Version 2.61 (MIN)
Order vs. Observation
Both

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Tyrosin/fenylalanin:Látkový poměr:Časový bod:Suchá krevní kapka (DBS):Kvantitativní:
el-GRGreek (Greece)Τυροσίνη/Φαινυλαλανίνη:SRto:Pt:Bld.dot:Qn:
Synonyms: Bld.dot CHEM Pt Qn SRto Αίμα Τυροσίνη Φαινυλαλανίνη
es-ESSpanish (Spain)Tirosina/Fenilalanina:Relacion de Sustancia:Punto temporal:gota de sangre (papel de filtro):Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Tirosina / Fenilalanina:Proporción de sustancia:Punto temporal:DBS:Cuantitativo:
fr-CAFrench (Canada)Tyrosine/Phénylalanine:Ratio de substance:Temps ponctuel:Sang sur papier filtre:Quantitatif:
fr-FRFrench (France)Tyrosine/phénylalanine:Moles ratio:Ponctuel:Sang buvard:Numérique:
fr-BEFrench (Belgium)Tyrosine/Phénylalanine:Ratio de substance:Temps ponctuel:Sang sur papier filtre:Quantitatif:
it-ITItalian (Italy)Tirosina/Fenilalanina:Srto:Pt:Sangue.su carta da filtro:Qn:
Synonyms: Chimica Punto nel tempo (episodio) Rapporto di sostanza Sangue Spot sangue secco
nl-NLDutch (Netherlands)tyrosine/fenylalanine:molaire verhouding:moment:gedroogde bloedspot:kwantitatief:
Synonyms: phenylalanine
ru-RURussian (Russian Federation)Тирозин/Фенилаланин:МольОтн:ТчкВрм:Кр.Сух.капл:Колич:
Synonyms: Количественный Кровь Кровь сухая капля Мольная доля;Молярная доля;Отношение концентраций Точка во времени;Момент
tr-TRTurkish (Turkey)Tirozin/Fenilalanin:SOrn:Zmlı:Kan.nokta:Kant:
Synonyms: SubsOranı
zh-CNChinese (China)酪氨酸/苯丙氨酸:物质的量比率:时间点:全血.斑点:定量型:
Synonyms: 3-对羟苯基丙氨酸;Tyr Phe Phe;PPA;苯基丙氨酸 PKU 全血斑点(滤纸);滤纸;血液.斑点;血液斑点(滤纸) 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 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 苯丙酮尿 苯丙酮尿症 苯丙酮酸尿症 血;血液

Example Units

UnitSource
{ratio}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=74481-3