17743-6
Triiodothyronine resin uptake (T3RU) in Serum or Plasma --1 hour post XXX challenge
Active
Part Description
LP15921-7 Triiodothyronine resin uptake (T3RU)
Thyroid hormone uptake ("T-uptake") assays provide information on the number of thyroid hormone binding sites, consisting primarily of thyroid binding globulin, thyroxine binding prealbumin and albumin. Since both T4 and T3 bind to these proteins, different assay formats have used either labeled T3 or T4 (the classic T3 resin uptake uses T3). Various T-uptake assays can differ in the units reported (and even the phenomena being measured), requiring mindfulness when selecting LOINC codes. Being used in the calculation of free T3 and free T4 index (FTI), the T-uptake variants also proliferate into variants of FTI. The classic T-uptake reported as % represents the proportion of labeled thyroid hormone (either T3 or T4) added to a sample that remains unbound (modern assays: use LOINC 74793-1; T3 resin uptake method: 3050-2). T-uptake reported as ratio of patient /control is known as thyroid hormone binding ratio, or THBR or T-uptake ratio (use LOINC 74794-9). T-uptake % and THBR generally are inversely proportional to the number of unoccupied thyroid hormone binding sites present. Alternative assay methods that report T-uptake as "T-uptake units" are described as being directly proportional to the total binding capacity (use LOINC 74795-6).
However, the major rationale for measuring the T-Uptake was to obtain a factor for estimating the free T4 (the biologically relevant fraction). Now that Free T4 measures are widely available, accurate and more economical than measuring a T-uptake AND a TT4 , use of the uptake has been discouraged by most experts. Canada has taken the position of not paying for T-uptake measures.
Source: Regenstrief LOINC
Fully-Specified Name
- Component
- Triiodothyronine resin uptake (T3RU)^1H post XXX challenge
- Property
- NFr
- Time
- Pt
- System
- Ser/Plas
- Scale
- Qn
- Method
Additional Names
- Long Common Name
- Triiodothyronine resin uptake (T3RU) in Serum or Plasma --1 hour post XXX challenge
- Short Name
- T3RU 1h p chal NFr SerPl
- Display Name
- T3RU 1 Hr post Unsp challenge
- Consumer Name Alpha Get Info
- T3RU 1 hr after challenge, Blood
Basic Attributes
- Class
- CHAL
- Type
- Laboratory
- First Released
- Version 1.0l
- Last Updated
- Version 2.70 (MIN)
- Order vs. Observation
- Observation
Language Variants Get Info
Tag | Language | Translation |
---|---|---|
el-GR | Greek (Greece) | Πρόσληψη της τριιωδοθυρονίνης από ρητίνη (T3RU)^1 ώρα κατόπιν πρόκλησης XXX: Synonyms: NFr |
es-AR | Spanish (Argentina) | captación de resina de triyodotironina^1 hora después de la provocación con XXX: |
es-ES | Spanish (Spain) | Captación de triiodotironina por resina^1 hora pos provocación XXX: Synonyms: Cuantitativo |
es-MX | Spanish (Mexico) | Captación de resina de triyodotironina (T3RU)^1H post XXX desafío: |
fr-CA | French (Canada) | T3 captation^1 h post test de provocation XXX: |
fr-FR | French (France) | Triiodothyronine captation T01h après épreuve: |
fr-BE | French (Belgium) | T3 captation^1 h post test de provocation XXX: Synonyms: T3 T3U |
it-IT | Italian (Italy) | Triiodotironina resina, assorbimento^1h post XXX provocazione: Synonyms: 1 ora dopo XXX stimolo Assorbimento della triiodotironina resina dopo XXX provocazione Frazione numerica Plasma Punto nel tempo (episodio) Siero Siero o Plasma Stimolo T3 Test di provocazione |
nl-NL | Dutch (Netherlands) | tri-iodothyronine harsopname (T3RU)^60 min na XXX belasting: Synonyms: 1 uur na XXX belasting |
pt-BR | Portuguese (Brazil) | Triiodotironina.retenção^60 min após administração de XXX: Synonyms: ; |
ru-RU | Russian (Russian Federation) | Трийодтиронин смолы захват (T3RU)^1 час после XXX пробы: Synonyms: Количественный Количество отношение Плазма Провокационная проба Сыворотка Сыворотка или Плазма Точка во времени; |
tr-TR | Turkish (Turkey) | Triiyodotironin reçine apteyk (T3RU)^1Sa snr XXX girişimi: |
zh-CN | Chinese (China) | 三碘甲状腺原氨酸树脂摄取^在XXX刺激之后1小时: Synonyms: 1Hr之后于XXX刺激; |
Example Units
Unit | Source |
---|---|
% | Example UCUM Units |
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