Version 2.78

Part Description

LP15923-3   Triiodothyronine.reverse
Reverse T3 and T3 are deiodinated metabolites of thyroxine (T4), the major secretory product of the thyroid gland. The conversion of T4 to T3 and T3 reverse is inhibited in a wide variety of conditions including fasting, malnutrition, poorly controlled diabetes mellitus, trauma, surgery, and systemic illnesses. Increased reverse T3 coupled with low T3 indicates sick euthyroid syndrome, not true hypothyroidism. Information from Quest Laboratories 2006 10 24. Source: Regenstrief Institute

Reference Information

Type Source Reference
Mapping Guidance Regenstrief Help This test has never proven to be useful for the sick euthyroid syndrome. It is only useful for a very very rare metabolic defect and has fallen out of favor. Mapper’s Guide for the Top 2000 plus LOINC Laboratory Observations

Fully-Specified Name

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

Additional Names

Short Name
T3Reverse SerPl-mCnc
Display Name
T3.reverse [Mass/Vol]
Consumer Name Alpha Get Info
T3.reverse, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0
Last Updated
Version 2.73
Order vs. Observation
Both
Common Test Rank Get Info
1453

Member of these Groups Get Info

LOINC Group Group Name
LG49724-4 Triiodothyronine.reverse|Pt|Ser/Plas

Language Variants Get Info

Tag Language Translation
es-AR Spanish (Argentina) triyodotironina.inversa:concentración de masa:punto en el tiempo:suero/plasma:cuantitativo:
es-ES Spanish (Spain) Triiodotironina reversa:Concentración de masa:Punto temporal:Suero o Plasma:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Triyodotironina inversa:Concentración de masa:Punto temporal:Suero o Plasma:Cuantitativo:
fr-CA French (Canada) Triiodothyronine.inverse:Concentration de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-FR French (France) Triiodothyronine réverse:Masse/Volume:Ponctuel:Sérum/Plasma:Numérique:
fr-BE French (Belgium) Triiodothyronine.inverse:Concentration de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
Synonyms: rT3 T3
it-IT Italian (Italy) Triiodotironina.reverse:MCnc:Pt:Siero/Plasma:Qn:
Synonyms: Chimica Concentrazione di Massa Plasma Punto nel tempo (episodio) Siero Siero o Plasma T3
ko-KR Korean (Korea, Republic Of) 역삼요드티로닌:질량농도:검사시점:혈청/혈장:정량:
nl-NL Dutch (Netherlands) tri-iodothyronine.reverse:massa/volume:moment:serum of plasma:kwantitatief:
pl-PL Polish (Poland) Trijodotyronina, odwrotna:stężenie masowe:punkt w czasie:surowica lub osocze:ilościowy:
pt-BR Portuguese (Brazil) Triiodotironina.reversa:MCnc:Pt:Sor/Plas:Qn:
Synonyms: ; T3Reverse; Reverse T3; rT3; Triodothyrne; T-3; FT3; Mass concentration; Level; Point in time; Random; SerPl; SerPlas; SerP; Serum; SR; Plasma; Pl; Plsm; Quantitative; QNT; Quant; Quan; REV; Chemistry
ru-RU Russian (Russian Federation) Трийодтиронин.обратный:МассКонц:ТчкВрм:Сыв/Плаз:Колич:
Synonyms: Количественный Массовая концентрация Плазма Сыворотка Сыворотка или Плазма Точка во времени;Момент
tr-TR Turkish (Turkey) Triiyodotironin.ters:KütlKons:Zmlı:Ser/Plaz:Kant:
zh-CN Chinese (China) 三碘甲状腺原氨酸.反:质量浓度:时间点:血清/血浆:定量型:
Synonyms: 3,3',5'-T3;Reverse T3;rT3;T3.反;T3.逆;T3Reverse;三碘甲状腺原氨酸.逆;反 T3;反三碘甲状腺原氨酸;逆 T3;逆三碘甲状腺原氨酸 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 倒 倒的 倒转 倒转的 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 反向 反向的 反常 反常的 反的 反相 反相的 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) 相反 相反的 血清或血浆 逆 逆的 颠倒 颠倒的

Example Units

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

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=3052-8