LOINC Code 13869-3: TSH 1.5 Hr post dose TRH IV [Mass/Vol]

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 Thyrotropin^1.5H post dose TRH IV. 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: DISCOURAGED
• Order vs observation: Observation

What it does not mean

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

Key facts

• Thyrotropin [Mass/volume] in Serum or Plasma --1.5 hours post dose TRH IV
• Thyrotropin^1.5H post dose TRH IV
• 1 1/2 hours; 1 1/2 HR; 1.5h p TRH; 1.5h p TRH IV; 1.5Hr; 90 min; 90 minutes; 90M; 90min; After; CHEMISTRY.CHALLENGE TESTING; Endocrine; Endocrinology; Level; Mass concentration; p dose; p TRH; Pl; Plasma; Plsm; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Thyroid stimulating hormone; Thyrotropic hormone; TSH

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