Version 2.74

Part Description

LP15792-2   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 for details. Source: Wikipedia, Phenylalanine (Wikipedia)

Fully-Specified Name


Additional Names

Short Name
Phe Ur Ql
Display Name
Phenylalanine Ql (U)
Consumer Name Alpha
Phenylalanine, Urine

Basic Attributes

First Released
Version 1.0k
Last Updated
Version 2.73
Change Reason
The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation
Common Test Rank

Language Variants

Tag Language Translation
zh-CN Chinese (China) 苯丙氨酸:存在情况或阈值:时间点:尿液:序数型:
Synonyms: Phe;PPA;苯基丙氨酸 依次型;分类顺序型;定性的;序数型(或称等级型);性质上的;有序型;有序性分类应答;有序性分类结果;秩次型;等级型;筛查;顺序型 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 存在情况;存在;存在与否;是否存在;阈值;界值;界限;阀值;临界值;存在情况(存在、存在与否、是否存在)或阈值(界值、界限、阀值、临界值) 尿;小便;下泉 时刻;随机;随意;瞬间
fr-CA French (Canada) Phénylalanine:Présence-Seuil:Temps ponctuel:Urine:Ordinal:
es-AR Spanish (Argentina) fenilalanina:concentración arbitraria:punto en el tiempo:orina:ordinal:
et-EE Estonian (Estonia) Fenüülalaniin:PrThr:Pt:U:Ord:
Synonyms: Järgarvuline Juhuslik Uriin
pt-BR Portuguese (Brazil) Fenilalanina:ACnc:Pt:Urina:Ord:
Synonyms: ; Phe; PPA; Arbitrary concentration; Point in time; Random; Ur; UR; Urn; UA; Ql; Ordinal; QL; Qualitative; Qual; Screen; Chemistry
ko-KR Korean (Korea, Republic Of) 페닐알라닌:임의농도:검사시점:뇨:순위척도:
es-ES Spanish (Spain) Fenilalanina:PrThr:Punto temporal:Orina:Ord:
pl-PL Polish (Poland) Fenyloalanina:obecność lub wartość progowa:Punkt w czasie:Mocz:Porządkowy:
Synonyms: Obecnosc lub prog Phe
it-IT Italian (Italy) Fenilalanina:PrThr:Pt:Urine:Ord:
Synonyms: Chimica Presenza o Soglia Punto nel tempo (episodio)
fr-FR French (France) Phénylalanine:Présence/Seuil:Ponctuel:Urine:Qualitatif:
tr-TR Turkish (Turkey) Fenilalanin:MevcEşik:Zmlı:İdrar:Srl:
Synonyms: Mevcut
ru-RU Russian (Russian Federation) Фенилаланин:PrThr:ТчкВрм:Моча:Пор:
Synonyms: Порядковый Точка во времени;Момент
nl-NL Dutch (Netherlands) fenylalanine:aanwezigheid:moment:urine:ordinaal:
fr-BE French (Belgium) Phénylalanine:PrThr:Temps ponctuel:Urine:Ordinal:
es-MX Spanish (Mexico) Fenilalanina:Presencia o umbral:Punto temporal:Orina:Ordinal:

LOINC Terminology Service (API) using HL7® FHIR®

CodeSystem lookup$lookup?system=