70217-5

Thyroxine (T4) free [Moles/volume] in Serum or Plasma by Dialysis

Active

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

Reference Information

Type	Source	Reference
Webcontent	Lab Tests Online^®Copyright Copyright © 2021 Lab Tests Online. All rights reserved.	T4, Free

Fully-Specified Name

Component: Thyroxine.free
Property: SCnc
Time: Pt
System: Ser/Plas
Scale: Qn
Method: Dialysis

Additional Names

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

Basic Attributes

Class: CHEM
Type: Laboratory
First Released: Version 2.40
Last Updated: Version 2.73
Order vs. Observation: Both

Member of these Groups

LOINC Group	Group Name
LG49674-1	Thyroxine.free\|Pt\|Ser/Plas\|Dialysis
LG2976-1	Thyroxine.free\|SCnc\|Pt\|ANYBldSerPl

Language Variants

Tag	Language	Translation
zh-CN	Chinese (China)	甲状腺素.游离型:物质的量浓度:时间点:血清/血浆:定量型:透析法 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;瞬间渗析游离游离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血透透析透析;渗析;肾脏透析;肾透析;血液透析;血透非蛋白结合型非蛋白质结合型
et-EE	Estonian (Estonia)	Türoksiin.vaba:SCnc:Pt:S/P:Qn:Dialüüs Synonyms: Aine kontsentratsioon Juhuslik Kvantitatiivne Plasma Seerum Seerum või plasma
pt-BR	Portuguese (Brazil)	Tiroxina.livre::Pt:Soro/Plas:Qn:Diálise
es-ES	Spanish (Spain)	Tiroxina libre:Concentración de sustancia:Punto temporal:Suero o Plasma:Qn:Dialisis
it-IT	Italian (Italy)	Tiroxina.libera:SCnc:Pt:Siero/Plasma:Qn:Dialisi Synonyms: Chimica Concentrazione di Sostanza Plasma Punto nel tempo (episodio) Siero Siero o Plasma Tiroxina libera
fr-FR	French (France)	Thyroxine libre:Moles/Volume:Ponctuel:Sérum/Plasma:Numérique:Dialyse
tr-TR	Turkish (Turkey)	Tiroksin.serb:SubKons:Zmlı:Ser/Plaz:Kant:Diyaliz
ru-RU	Russian (Russian Federation)	Тироксин.свободный:МолКонц:ТчкВрм:Сыв/Плаз:Колич:Диализ Synonyms: Количественный Молярность;Молярная объёмная концентрация Плазма Сыворотка Сыворотка или Плазма Точка во времени;Момент
nl-NL	Dutch (Netherlands)	thyroxine.vrij:mol/volume:moment:serum of plasma:kwantitatief:dialyse
pl-PL	Polish (Poland)	wolna tyroksyna:Stężenie substancji:Punkt w czasie:Surowica lub osocze:ilościowy:dializa Synonyms: osocze
de-DE	German (Germany)	Thyroxin.frei:Stoffmengenkonzentration:Zeitpunkt:Serum oder Plasma:Quantitativ:Dialyse Synonyms: fT4
es-MX	Spanish (Mexico)	Thyroxine.libre:Concentración de sustancias:Punto temporal:Suero o Plasma:Cuantitativo:Diálisis

Example Units

Unit	Source
pmol/L	Example UCUM Units

LOINC Terminology Service (API) using HL7^® FHIR^®

CodeSystem lookup: https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=70217-5

LOINC Copyright

Copyright © 2023 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2023, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.