Version 2.74

Part Descriptions

LP15900-1   Thyroxine
The major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosine (monoiodotyrosine) and the coupling of iodotyrosine (diiodotyrosine) in thyroglobulin. Thyroxine is separated from thyroglobulin by proteolysis and released in the blood. Thyroxine is peripherally deiodinated to form triiodothyronine which exerts broad stimulatory effects on cell metabolism. Source: National Library of Medicine, MeSH 2006

LP7565-7   Saliva
Saliva is produced primarily by the parotid, submaxillary, and sublingual glands. It is secreted at the rate of 0-3 milliliters per minute which is affected by various factors including anxiety, hydration and hunger. Oral fluid is broadly used to test for drugs of abuse in employment and forensic settings, and is especially useful since it is difficult to adulterate, is quick and is non-invasive. Oral fluid is used to test a variety of analytes, including to test alcohol, HIV and other antibodies, therapeutic drugs and steroids, but its primary use is to test for drugs of abuse including amphetamines, cocaine and metabolites, opioids, methadone, cannabis and heroin.[PMID: 17268583] Source: Regenstrief LOINC

Fully-Specified Name


Additional Names

Short Name
T4 Sal-mCnc
Display Name
T4 (Sal) [Mass/Vol]
Consumer Name Alpha
T4, Saliva

Basic Attributes

First Released
Version 2.00
Last Updated
Version 2.73
Order vs. Observation
Common Test Rank

Language Variants

Tag Language Translation
zh-CN Chinese (China) 甲状腺素:质量浓度:时间点:唾液:定量型:
Synonyms: T4;T-4;四碘甲状腺原氨酸;四碘甲腺原氨酸;左旋四碘甲状腺原氨酸;左旋四碘甲腺原氨酸;左旋甲状腺氨酸;左旋甲状腺素;左旋甲状腺素(Levothyroxine,Levo-thyroxine,L-thyroxine);甲状腺氨酸 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) 津;津液;
es-AR Spanish (Argentina) tiroxina:concentración de masa:punto en el tiempo:saliva:cuantitativo:
fr-CA French (Canada) Thyroxine:Concentration de masse:Temps ponctuel:Salivaire:Quantitatif:
et-EE Estonian (Estonia) Türoksiin:MCnc:Pt:Sal:Qn:
Synonyms: Juhuslik Kvantitatiivne Sülg
pt-BR Portuguese (Brazil) Tiroxina:MCnc:Pt:Saliva:Qn:
Synonyms: ; T4; T-4; Thyrox; Thyrx; Thyroxin; Levothyroxine; Levo-thyroxine; L-thyroxine; Mass concentration; Level; Point in time; Random; Sal; Quantitative; QNT; Quant; Quan; Chemistry
pl-PL Polish (Poland) Tyroksyna:Stężenie masowe:Punkt w czasie:Ślina:ilościowy:
es-ES Spanish (Spain) Tiroxina:Concentración de masa:Punto temporal:Saliva:Qn:
ko-KR Korean (Korea, Republic Of) 티록신:질량농도:검사시점:침:정량:
it-IT Italian (Italy) Tiroxina:MCnc:Pt:Saliva:Qn:
Synonyms: Chimica Concentrazione di Massa Punto nel tempo (episodio)
fr-FR French (France) Thyroxine:Masse/Volume:Ponctuel:Salive:Numérique:
tr-TR Turkish (Turkey) Tiroksin:KütlKons:Zmlı:Tükürük:Kant:
ru-RU Russian (Russian Federation) Тироксин:МассКонц:ТчкВрм:Слюна:Колич:
Synonyms: Количественный Массовая концентрация Точка во времени;Момент
nl-NL Dutch (Netherlands) thyroxine:massa/volume:moment:speeksel:kwantitatief:
fr-BE French (Belgium) Thyroxine:Concentration de masse:Temps ponctuel:Salivaire:Quantitatif:
Synonyms: T4
es-MX Spanish (Mexico) Tiroxina:Concentración de masa:Punto temporal:Saliva:Cuantitativo:

Example Units

Unit Source
ng/dL Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR®

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