Version 2.74

Status Information

Status
DISCOURAGED
Comment
These were created for the sole purpose of facilitating use of LOINC for submissions for medication approval to the FDA and should not be used in routine laboratory reporting.

Part Description

LP29119-2   Thyroxine.free
Free T4 is the metabolically active fraction of thyroxine and is the precursor of triiodothyronine (T3). Free T4 is a sensitive test for thyroid function and is increased with hyperthyroidism and decreased with hypothyroidism. Free T4 is not affected by changes in thryoxine-binding proteins. Information from Laboratory Test Handbook, Jacobs DS, DeMott WR, and Oxley DK, LexiComp, 2001. Source: Regenstrief Institute

Fully-Specified Name

Component
Thyroxine.free
Property
MSCnc
Time
Pt
System
Ser/Plas
Scale
Qn
Method

Additional Names

Short Name
T4 Free SerPl-msCnc
Display Name
Free T4 [Mass or moles/Vol]
Consumer Name Alpha
Free T4, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.11
Last Updated
Version 2.42
Order vs. Observation
Both

Language Variants

Tag Language Translation
zh-CN Chinese (China) 甲状腺素.游离型:质量或物质的量浓度:时间点:血清/血浆:定量型:
Synonyms: FT4 FT4;FT-4;T4.游离;T4.游离型;游离 T4;游离型 T4;游离型甲状腺素;游离甲状腺素;甲状腺素.游离 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 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 游离 游离T4 游离四碘甲状腺原氨酸 游离型四碘甲状腺原氨酸 游离甲状腺素 血清或血浆 质量或摩尔浓度;质量或摩尔浓度(单位体积);质量或物质的量浓度(单位体积) 非蛋白结合型 非蛋白质结合型
es-AR Spanish (Argentina) tiroxina.libre:concentración de masa:punto en el tiempo:suero/plasma:cuantitativo:
et-EE Estonian (Estonia) Türoksiin.vaba:MSCnc:Pt:S/P:Qn:
Synonyms: Juhuslik Kvantitatiivne Plasma Seerum Seerum või plasma
pt-BR Portuguese (Brazil) Tiroxina.livre:MSCnc:Pt:Sor/Plas:Qn:
Synonyms: ; T4 Free; T-4; FreeT4; Thyrox; Thyrx; Thyroxin; Levothyroxine; Levo-thyroxine; L-thyroxine; Level; Point in time; Random; SerPl; SerPlas; SerP; Serum; SR; Plasma; Pl; Plsm; Quantitative; QNT; Quant; Quan; FT4; FR; Non-protein bound; Chemistry
es-ES Spanish (Spain) Tiroxina libre:Razón de masa o sustancia:Punto temporal:Suero o Plasma:Qn:
ko-KR Korean (Korea, Republic Of) 유리티록신:질량물질농도:검사시점:혈청/혈장:정량:
it-IT Italian (Italy) Tiroxina.libera:MSCnc:Pt:Siero/Plasma:Qn:
Synonyms: Chimica Concentrazione Sostanza o Massa Plasma Punto nel tempo (episodio) Siero Siero o Plasma Tiroxina libera
tr-TR Turkish (Turkey) Tiroksin.serb:KütlSubKons:Zmlı:Ser/Plaz:Kant:
ru-RU Russian (Russian Federation) Тироксин.свободный:МасМольКонц:ТчкВрм:Сыв/Плаз:Колич:
Synonyms: Количественный Массовая или Молярная Концентрация Плазма Сыворотка Сыворотка или Плазма Точка во времени;Момент
nl-NL Dutch (Netherlands) thyroxine.vrij:massa of stof/volume:moment:serum of plasma:kwantitatief:
es-MX Spanish (Mexico) Thyroxine.libre:Concentración de masa o sustancia:Punto temporal:Suero o Plasma:Cuantitativo:

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CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=35228-6