LOINC Code 17743-6: T3RU 1 Hr post Unsp challenge

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Triiodothyronine resin uptake (T3RU)^1H post XXX challenge. It is commonly used with the system or sample type Ser/Plas.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE
• Order vs observation: Observation

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• Triiodothyronine resin uptake (T3RU) in Serum or Plasma --1 hour post XXX challenge
• Triiodothyronine resin uptake (T3RU)^1H post XXX challenge
• 1 hour; 1.0Hr; 1h p chal; 60 min; 60 minutes; 60M; 60min; After; CHEMISTRY.CHALLENGE TESTING; Endocrine; Endocrinology; Number Fraction; p chal; Percent; Pl; Plasma; Plsm; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; RT3U; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; T uptake; T3; T-3; T3 binding ratio; T3 RU; T3 uptake; T3RU; T3uptake; thyroid hormone; Total T3; Triiodothyroinine uptake; Triodothyrne

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions