LOINC
Version 2.73

74481-3Tyrosine/Phenylalanine [Molar ratio] in DBSActive

Term Description

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

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. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Regenstrief Institute, Phenylalanine (Wikipedia)

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)

Fully-Specified Name

Component
Tyrosine/Phenylalanine
Property
SRto
Time
Pt
System
Bld.dot
Scale
Qn
Method

Additional Names

Short Name
Tyrosine/Phe DBS-sRto
Display Name
Tyrosine/Phenylalanine (DBS) [Molar ratio]
Consumer Name Alpha
Tyrosine/Phenylalanine, Dried blood spot

Basic Attributes

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

Language Variants Get Info

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:
nl-NLDutch (Netherlands)
tyrosine/fenylalanine:molaire verhouding:moment:gedroogde bloedspot:kwantitatief:
fr-BEFrench (Belgium)
Tyrosine/Phénylalanine:Ratio de substance:Temps ponctuel:Sang sur papier filtre:Quantitatif:
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:
it-ITItalian (Italy)
Tirosina/Fenilalanina:Srto:Pt:Sangue.su carta da filtro:Qn:
pt-BRPortuguese (Brazil)
Tirosina/Fenilalanina::Pt:SgPapel:Qn:
ru-RURussian (Russian Federation)
Тирозин/Фенилаланин:МольОтн:ТчкВрм:Кр.Сух.капл:Колич:
es-MXSpanish (Mexico)
Tirosina / Fenilalanina:Proporción de sustancia:Punto temporal:DBS:Cuantitativo:
es-ESSpanish (Spain)
Tirosina/Fenilalanina:Relacion de Sustancia:Punto temporal:gota de sangre (papel de filtro):Qn:
tr-TRTurkish (Turkey)
Tirozin/Fenilalanin:SOrn:Zmlı:Kan.nokta:Kant:

Example Units

Unit Source
{ratio} Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=74481-3