LOINC
Version 2.66

90797-2Thyroxine (T4) [Mass/volume] in Serum or Plasma --2 hours post dose levothyroxineActive

Component
Thyroxine^2H post dose levothyroxine
Property
MCnc
Time
Pt
System
Ser/Plas
Scale
Qn
Method

Additional Names

Short Name
T4 2h p levo SerPl-mCnc
Display Name Beta
T4 2 Hr post dose levothyroxine [Mass/Vol]
Consumer Name Alpha
T4 2 Hr After Levothyroxine, Blood

Part Descriptions

LP15900-1   Thyroxine
Thyroxine (T4) and triiodothyronine (T3), are tyrosine-based hormones produced by the thyroid gland. An important component in the synthesis is iodine. The major form of thyroid hormone in the blood is T4. The ratio of T4 to T3 is roughly 20 to 1. Thyroxine is converted to active T3 (three to four times more potent than T4) within cells by deiodinases (5'-iodinase). These are further processed by decarboxylated and deiodinated to produce iodothyronamine (T1 a) and thyronamine (T0 a). Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Thyroxine (Wikipedia)

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

Basic Attributes

Class
CHAL
Type
Laboratory
First Released
Version 2.65
Last Updated
Version 2.65
Order vs. Observation
Observation

Member of these Panels

LOINC Long Common Name
90795-6 Levothyroxine absorption panel - Serum or Plasma

Language Variants Get Info

zh-CNChinese (China)
甲状腺素^在剂量左旋甲状腺素之后2小时:质量浓度:时间点:血清/血浆:定量型:
it-ITItalian (Italy)
Tiroxina^2h post dose levotiroxina:MCnc:Pt:Siero/Plasma:Qn:
es-ESSpanish (Spain)
Tiroxina^2 horas post dosis de levotiroxina:Concentración de masa:Punto temporal:Suero o Plasma:Qn:

Example Units

Unit Source
ug/dL Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=90797-2