LOINC
Version 2.70

83127-1Triiodothyronine (T3) Free [Mass/volume] in Serum or Plasma by ImmunoassayActive

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.
Source: Regenstrief LOINC

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

Fully-Specified Name

Component
Triiodothyronine.free
Property
MCnc
Time
Pt
System
Ser/Plas
Scale
Qn
Method
IA

Additional Names

Short Name
T3Free SerPl IA-mCnc
Display Name
Free T3 IA [Mass/Vol]
Consumer Name Alpha
Free T3, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.58
Last Updated
Version 2.58
Order vs. Observation
Both

Reference Information

Type Source Reference
Webcontent Lab Tests Online®Copyright Copyright © 2001-2019 American Association for Clinical Chemistry T3 (Free and Total)

Member of these Groups

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

Language Variants Get Info

zh-CNChinese (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
nl-NLDutch (Netherlands)
tri-iodothyronine.vrij:massa/volume:moment:serum of plasma:kwantitatief:immunoassay
et-EEEstonian (Estonia)
Trijoodtüroniin.vaba:MCnc:Pt:S/P:Qn:IA
fr-BEFrench (Belgium)
Triiodothyronine.libre:Concentration de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:IA
fr-CAFrench (Canada)
Triiodothyronine.libre:Concentration de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:IA
fr-FRFrench (France)
Triiodothyronine libre:Masse/Volume:Ponctuel:Sérum/Plasma:Numérique:Immunoanalyse
el-GRGreek (Greece)
Τριιωδοθυρονίνη ελεύθερη:Συγκέντρωση μάζας:Χρονική στιγμή:Ορός/Πλάσμα:Ποσοτική:IA
it-ITItalian (Italy)
Triiodotironina.libera:MCnc:Pt:Siero/Plasma:Qn:IA
ru-RURussian (Russian Federation)
Трийодтиронин.свободный:МассКонц:ТчкВрм:Сыв/Плаз:Колич:IA
es-ESSpanish (Spain)
Triiodotironina libre:Concentración de masa:Punto temporal:Suero o Plasma:Qn:IA
tr-TRTurkish (Turkey)
Triiyodotironin.serb:KütlKons:Zmlı:Ser/Plaz:Kant:İA

Example Units

Unit Source
pg/mL Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=83127-1