Version 2.74

Part Description

LP15900-1   Thyroxine
The major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosine (monoiodotyrosine) and the coupling of iodotyrosine (diiodotyrosine) in thyroglobulin. Thyroxine is separated from thyroglobulin by proteolysis and released in the blood. Thyroxine is peripherally deiodinated to form triiodothyronine which exerts broad stimulatory effects on cell metabolism. Source: National Library of Medicine, MeSH 2006

Fully-Specified Name

Component
Thyroxine
Property
SCnc
Time
Pt
System
Ser/Plas
Scale
Qn
Method

Additional Names

Short Name
T4 SerPl-sCnc
Display Name
T4 [Moles/Vol]
Consumer Name Alpha
T4, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0k
Last Updated
Version 2.73
Order vs. Observation
Both
Common Test Rank
14432

Member of these Groups

LOINC Group Group Name
LG46307-1 Thyroxine|Pt|Ser/Plas|776.874 g/mole
LG2977-9 Thyroxine|SCnc|Pt|ANYBldSerPl

Language Variants

Tag Language Translation
de-DE German (Germany) Thyroxin:Stoffmengenkonzentration:Zeitpunkt:Serum oder Plasma:Quantitativ:
zh-CN Chinese (China) 甲状腺素:物质的量浓度:时间点:血清/血浆:定量型:
Synonyms: T4;T-4;四碘甲状腺原氨酸;四碘甲腺原氨酸;左旋四碘甲状腺原氨酸;左旋四碘甲腺原氨酸;左旋甲状腺氨酸;左旋甲状腺素;左旋甲状腺素（Levothyroxine，Levo-thyroxine，L-thyroxine）;甲状腺氨酸 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 时刻;随机;随意;瞬间 血清或血浆
fr-CA French (Canada) Thyroxine:Concentration de substance:Temps ponctuel:Sérum/Plasma:Quantitatif:
es-AR Spanish (Argentina) tiroxina:concentración de sustancia:punto en el tiempo:suero/plasma:cuantitativo:
et-EE Estonian (Estonia) Türoksiin:SCnc:Pt:S/P:Qn:
Synonyms: Aine kontsentratsioon Juhuslik Kvantitatiivne Plasma Seerum Seerum või plasma
pt-BR Portuguese (Brazil) Tiroxina:SCnc:Pt:Sor/Plas:Qn:
Synonyms: ; T4; T-4; Thyrox; Thyrx; Thyroxin; Levothyroxine; Levo-thyroxine; L-thyroxine; Substance concentration; Level; Point in time; Random; SerPl; SerPlas; SerP; Serum; SR; Plasma; Pl; Plsm; Quantitative; QNT; Quant; Quan; Chemistry
ko-KR Korean (Korea, Republic Of) 티록신:물질농도:검사시점:혈청/혈장:정량:
es-ES Spanish (Spain) Tiroxina:Concentración de sustancia:Punto temporal:Suero o Plasma:Qn:
pl-PL Polish (Poland) Tyroksyna:Stężenie substancji:Punkt w czasie:Surowica lub osocze:ilościowy:
Synonyms: osocze
it-IT Italian (Italy) Tiroxina:SCnc:Pt:Siero/Plasma:Qn:
Synonyms: Chimica Concentrazione di Sostanza Plasma Punto nel tempo (episodio) Siero Siero o Plasma
el-GR Greek (Greece) Θυροξίνη:Συγκέντρωση ουσίας:Χρονική στιγμή:Ορός/Πλάσμα:Ποσοτική:
Synonyms: Τ4
fr-FR French (France) Thyroxine:Moles/Volume:Ponctuel:Sérum/Plasma:Numérique:
tr-TR Turkish (Turkey) Tiroksin:SubKons:Zmlı:Ser/Plaz:Kant:
es-MX Spanish (Mexico) Tiroxina:Concentración de sustancias:Punto temporal:Suero o Plasma:Cuantitativo:
ru-RU Russian (Russian Federation) Тироксин:МолКонц:ТчкВрм:Сыв/Плаз:Колич:
Synonyms: Количественный Молярность;Молярная объёмная концентрация Плазма Сыворотка Сыворотка или Плазма Точка во времени;Момент
nl-NL Dutch (Netherlands) thyroxine:mol/volume:moment:serum of plasma:kwantitatief:
fr-BE French (Belgium) Thyroxine:Concentration de substance:Temps ponctuel:Sérum/Plasma:Quantitatif:
Synonyms: T4
uk-UA Ukraine (Ukrainian) Тироксин:Молярна Концентрація:МоментЧасу:Сироватка/Плазма:Кількісно:

Example Units

Unit Source
nmol/L Example UCUM Units
nmol/L eCHN

LOINC Terminology Service (API) using HL7® FHIR®

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=14921-1