LOINC
Version 2.66

3024-7Thyroxine (T4) free [Mass/volume] in Serum or PlasmaActive

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

Additional Names

Short Name
T4 Free SerPl-mCnc
Display Name Beta
Free T4 [Mass/Vol]
Consumer Name Alpha
Free T4, Blood

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. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Regenstrief Institute, Thyroxine (Wikipedia)

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0
Last Updated
Version 2.34
Order vs. Observation
Both
Common US Lab Results Rank
133
Common Orders Rank
72
CDISC Lab Test
Yes

Reference Information

Type Source Reference
Webcontent Lab Tests Online®Copyright Copyright 2001-2019 American Association for Clinical Chemistry. T4, Free

Member of these Panels

LOINC Long Common Name
24348-5 Free T4 and TSH panel - Serum or Plasma
90224-7 Thyroxine and Thyroxine.free panel - Serum or Plasma

Member of these Groups

LG12004-4 Thyroxine.free|MCnc|Pt|ANYBldSerPl
LG49672-5 Thyroxine.free|Pt|Ser/Plas

Language Variants Get Info

zh-CNChinese (China)
甲状腺素.游离型:质量浓度:时间点:血清/血浆:定量型:
nl-NLDutch (Netherlands)
thyroxine.vrij:massa/volume:moment:serum of plasma:kwantitatief:
et-EEEstonian (Estonia)
Türoksiin.vaba:MCnc:Pt:S/P:Qn:
fr-BEFrench (Belgium)
Thyroxine.libre:Concentration de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-CAFrench (Canada)
Thyroxine.libre:Concentration de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-FRFrench (France)
Thyroxine.free:MCnc:Pt:Ser/Plas:Qn:
de-ATGerman (Austria)
Freies T4
de-DEGerman (Germany)
Thyroxin.frei:MKnz:Pkt:Ser/Plas:Qn:
el-GRGreek (Greece)
Θυροξίνη ελεύθερη:Συγκέντρωση μάζας:Χρονική στιγμή:Ορός/Πλάσμα:Ποσοτική:
it-ITItalian (Italy)
Tiroxina.libera:MCnc:Pt:Siero/Plasma:Qn:
ko-KRKorean (Korea, Republic of)
유리티록신:질량농도:검사시점:혈청/혈장:정량:
pt-BRPortuguese (Brazil)
Tiroxina.livre:MCnc:Pt:Sor/Plas:Qn:
ru-RURussian (Russian Federation)
Тироксин.свободный:МассКонц:ТчкВрм:Сыв/Плаз:Колич:
es-ARSpanish (Argentina)
tiroxina.libre:concentración de masa:punto en el tiempo:suero/plasma:cuantitativo:
es-ESSpanish (Spain)
Tiroxina libre:Concentración de masa:Punto temporal:Suero o Plasma:Qn:
tr-TRTurkish (Turkey)
Tiroksin.serb:KütlKons:Zmlı:Ser/Plaz:Kant:

Example Units

Unit Source
ng/dL Example UCUM Units
ng/dL REGENSTRIEF

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=3024-7