Description

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

Basic Part Properties

Part Name
Thyroxine.free
Part Display Name
Thyroxine free
Part Type
Component (Describes the core component or analyte measured)
Created On
2002-06-18
Construct for LOINC Short Name
T4 Free

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=LP29119-2
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Language Variants Get Info

TagLanguageTranslation
zh-CNChinese (China)甲状腺素.游离型
Synonyms: 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
fr-CAFrench (Canada)Thyroxine.libre
et-EEEstonian (Estonia)Türoksiin.vaba
es-ESSpanish (Spain)Tiroxina libre
it-ITItalian (Italy)Tiroxina.libera
Synonyms: Tiroxina libera
el-GRGreek (Greece)Θυροξίνη.ελεύθερη
Synonyms: Θυροξίνη.ελεύθερη
tr-TRTurkish (Turkey)Tiroksin.serb
ru-RURussian (Russian Federation)Тироксин.свободный
nl-NLDutch (Netherlands)thyroxine.vrij
fr-BEFrench (Belgium)Thyroxine.libre
Synonyms: T4L,fT4
fr-FRFrench (France)Thyroxine libre
pl-PLPolish (Poland)Wolna tyroksyna