35230-2
Triiodothyronine (T3) Free [Mass or Moles/volume] in Serum or Plasma
Discouraged
Status Information
- Status
- DISCOURAGED
- Comment
- These were created for the sole purpose of facilitating use of LOINC for submissions for medication approval to the FDA and should not be used in routine laboratory reporting.
Part Description
LP29126-7 Triiodothyronine.free
Free T3 (free triiodothyronine) is a measure of free circulating T3, excluding that which is bound to carrier proteins. This provides a more accurate measure of T3 levels because the carrier proteins can increase or decrease in various conditions artificially inflating or shrinking the total T3. T3 is discriminating for diagnosing and/or following the treatment of hyperthyroidism. It is not very useful at the low range of concentrations, so is not very helpful in diagnosing hypothyroidism. The thyroid delivers 20 times more T4 than T3, so T4 is the more relevant analyte except in special cases.
Source: Regenstrief Help
LOINC Names Get Info
- Fully-Specified Name
- Triiodothyronine.free:
MSCnc: Pt: Ser/Plas: Qn: - Long Common Name
- Triiodothyronine (T3) Free [Mass or Moles/volume] in Serum or Plasma
- Short Name
- T3Free SerPl-msCnc
- Display Name
- Free T3 [Mass or moles/Vol]
- Consumer Name Alpha Get Info
- Free T3, Blood
Part Model Get Info
Basic Attributes
- Class
- CHEM
- Type
- Laboratory
- First Released
- Version 2.11
- Last Updated
- Version 2.73 (MIN)
- Order vs. Observation
- Both
- Common Test Rank Get Info
- 16133
Member of these Groups Get Info
| LOINC Group | Group Name |
|---|---|
| LG46407-9 | Triiodothyronine.free| |
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| cs-CZ | Czech (Czechia) | Trijodtyronin volný: |
| el-GR | Greek (Greece) | Τριιωδοθυρονίνη.ελεύθερη: Synonyms: CHEM MSCnc Pt Qn Ορός Ορός/Πλάσμα Πλάσμα Τριιωδοθυρονίνη Τριιωδοθυρονίνη.ελεύθερη |
| es-AR | Spanish (Argentina) | triyodotironina.libre: |
| es-ES | Spanish (Spain) | Triiodotironina libre: Synonyms: Cuantitativo |
| es-MX | Spanish (Mexico) | Triyodotironina libre: |
| et-EE | Estonian (Estonia) | Trijoodtüroniin.vaba: Synonyms: Juhuslik Kvantitatiivne Plasma Seerum Seerum või plasma |
| it-IT | Italian (Italy) | Triiodotironina.libera: Synonyms: Chimica Concentrazione Sostanza o Massa Plasma Punto nel tempo (episodio) Siero Siero o Plasma T3 Triiodotironina Libera |
| ko-KR | Korean (Korea, Republic Of) | 유리삼요드티로닌: |
| nl-NL | Dutch (Netherlands) | tri-iodothyronine.vrij: |
| pl-PL | Polish (Poland) | Wolna trójjodotyronina: |
| pt-BR | Portuguese (Brazil) | Triiodotironina.livre: Synonyms: ; |
| ru-RU | Russian (Russian Federation) | Трийодтиронин.свободный: Synonyms: Количественный Массовая или Молярная Концентрация Плазма Сыворотка Сыворотка или Плазма Точка во времени; |
| tr-TR | Turkish (Turkey) | Triiyodotironin.serb: |
| zh-CN | Chinese (China) | 三碘甲状腺原氨酸.游离型: Synonyms: FT3; |
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LOINC Copyright
Copyright © Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://