83127-1

Triiodothyronine (T3) Free [Mass/volume] in Serum or Plasma by Immunoassay

Active

Term Description

This term was created for, but is not limited in use to, bioMerieux's VIDAS FT3 assay, which is intended for the quantitative measurement of free triiodothyronine (FT3) in human serum or plasma.

Part Description

LP29126-7 Triiodothyronine.free
Free T3 (free triiodothyronine) is a measure of free circulating T3, excluding that which is bound to carrier proteins. This provides a more accurate measure of T3 levels because the carrier proteins can increase or decrease in various conditions artificially inflating or shrinking the total T3. T3 is discriminating for diagnosing and/or following the treatment of hyperthyroidism. It is not very useful at the low range of concentrations, so is not very helpful in diagnosing hypothyroidism. The thyroid delivers 20 times more T4 than T3, so T4 is the more relevant analyte except in special cases. Source: Regenstrief Help

LOINC Names Get Info

Fully-Specified Name: Triiodothyronine.free:MCnc:Pt:Ser/Plas:Qn:IA
Long Common Name: Triiodothyronine (T3) Free [Mass/volume] in Serum or Plasma by Immunoassay
Short Name: T3Free SerPl IA-mCnc
Display Name: Free T3 IA [Mass/Vol]
Consumer Name Alpha Get Info: Free T3, Blood

Part Model Get Info

Component
Triiodothyronine.free
LP29126-7
- Analyte
  Triiodothyronine.free
  LP29126-7
  - Component Numerator
    Triiodothyronine.free
    LP29126-7
    - Component Numerator Core
      Triiodothyronine.free
      LP29126-7
    - Component Numerator Core Suffix
      NULL
  - Component Denominator
    NULL
    - Component Denominator Core
      NULL
    - Component Denominator Core Suffix
      NULL
- Challenge
  NULL
- Adjustment
  NULL
- Count
  NULL
Property
MCnc
LP6827-2
Time
Pt
LP6960-1
- Time Core
  Pt
  LP6960-1
- Time Modifier
  NULL
System
Ser/Plas
LP7576-4
- System Core
  Ser/Plas
  LP7576-4
- Super System
  NULL
Scale
Qn
LP7753-9
Method
IA
LP217197-5

Basic Attributes

Class: CHEM
Type: Laboratory
First Released: Version 2.58
Last Updated: Version 2.73 (MIN)
Order vs. Observation: Both
Common Test Rank Get Info: 17567

Member of these Groups Get Info

LOINC Group	Group Name
LG11488-0	Triiodothyronine.free\|MCnc\|Pt\|ANYBldSerPl
LG46409-5	Triiodothyronine.free\|Pt\|Ser/Plas\|IA

Language Variants Get Info

Tag	Language	Translation
cs-CZ	Czech (Czechia)	Trijodtyronin volný:Hmotnostní koncentrace:Časový bod:Sérum/plazma:Kvantitativní:Imunoanalýza
de-DE	German (Germany)	Trijodthyronin.frei:Massenkonzentration:Zeitpunkt:Serum oder Plasma:Quantitativ:Immunoassay Synonyms: fT3
el-GR	Greek (Greece)	Τριιωδοθυρονίνη.ελεύθερη:MCnc:Pt:Ορός/Πλάσμα:Qn:IA Synonyms: CHEM IA MCnc Pt Qn Ορός Ορός/Πλάσμα Πλάσμα Τριιωδοθυρονίνη Τριιωδοθυρονίνη.ελεύθερη
es-ES	Spanish (Spain)	Triiodotironina libre:Concentración de masa:Punto temporal:Suero o Plasma:Qn:IA Synonyms: Cuantitativo
es-MX	Spanish (Mexico)	Triyodotironina libre:Concentración de masa:Punto temporal:Suero o Plasma:Cuantitativo:Inmunoensayo
et-EE	Estonian (Estonia)	Trijoodtüroniin.vaba:MCnc:Pt:S/P:Qn:IA Synonyms: Juhuslik Kvantitatiivne Plasma Seerum Seerum või plasma
fr-CA	French (Canada)	Triiodothyronine.libre:Concentration de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:IA
fr-FR	French (France)	Triiodothyronine libre:Masse/Volume:Ponctuel:Sérum/Plasma:Numérique:Immunoanalyse
fr-BE	French (Belgium)	Triiodothyronine.libre:Concentration de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:IA Synonyms: T3 T3L,fT3
it-IT	Italian (Italy)	Triiodotironina.libera:MCnc:Pt:Siero/Plasma:Qn:IA Synonyms: Chimica Concentrazione di Massa Immunoassay Plasma Punto nel tempo (episodio) Siero Siero o Plasma T3 Triiodotironina Libera
nl-NL	Dutch (Netherlands)	tri-iodothyronine.vrij:massa/volume:moment:serum of plasma:kwantitatief:immunoassay Synonyms: IA
pl-PL	Polish (Poland)	Wolna trójjodotyronina:stężenie masowe:punkt w czasie:surowica lub osocze:ilościowy:metoda immunologiczna
ru-RU	Russian (Russian Federation)	Трийодтиронин.свободный:МассКонц:ТчкВрм:Сыв/Плаз:Колич:IA Synonyms: Количественный Массовая концентрация Плазма Сыворотка Сыворотка или Плазма Точка во времени;Момент
tr-TR	Turkish (Turkey)	Triiyodotironin.serb:KütlKons:Zmlı:Ser/Plaz:Kant:İA Synonyms: İmmünölçüm, immünoassay
uk-UA	Ukrainian (Ukraine)	Трийодтиронін.вільний:Масова Концентрація:МоментЧасу:Сироватка/Плазма:Кількісно:Імуноаналіз Synonyms: Chemistry; EIA; ELFA; ELISA; Endocrine; Endocrinology; Enzyme immunoassay; FR; Free T3; FT3; IAA; Level; Mass concentration; MEIA; Non-protein bound; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; SUDS; T3; T-3; T3Free; thyroid hormone; Total T3; Triodothyrne
zh-CN	Chinese (China)	三碘甲状腺原氨酸.游离型:质量浓度:时间点:血清/血浆:定量型:免疫测定法 Synonyms: FT3;FT-3;T3;T-3;T3.游离;T3.游离型;T3Free;三碘甲状腺原氨酸.游离;三碘甲状腺氨酸.游离;三碘甲状腺氨酸.游离型;三碘甲腺原氨酸.游离;三碘甲腺原氨酸.游离型;游离 T3;游离型 T3;游离型三碘甲状腺原氨酸 FT3;T3;T-3;T3.游离;T3.游离型;三碘甲状腺原氨酸.游离;三碘甲状腺原氨酸.游离型;三碘甲状腺氨酸;三碘甲状腺氨酸.游离;三碘甲状腺氨酸.游离型;三碘甲腺原氨酸;三碘甲腺原氨酸.游离;三碘甲腺原氨酸.游离型;游离 T3;游离三碘甲状腺原氨酸;游离三碘甲状腺氨酸;游离三碘甲腺原氨酸;游离型 T3;游离型三碘甲状腺原氨酸;游离型三碘甲状腺氨酸;游离型三碘甲腺原氨酸;甲磺安免疫测定;免疫分析法;免疫检定法;免疫检定;免疫试验;酶免疫测定法;酶免疫测定;酶免疫分析法;酶免疫检定法;酶免疫检定;酶免疫试验化学;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;瞬间水平;浓度;质量浓度(单位体积) 游离血清或血浆非蛋白结合型非蛋白质结合型

Example Units

Unit	Source
pg/mL	Example UCUM Units

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LOINC Copyright

Copyright © Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 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.