LOINC Code 71776-9: Gamma interferon background IA Qn (Bld)

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 Gamma interferon background. It is commonly used with the system or sample type Bld.

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
• Method: IA

What it does not mean

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

Key facts

• Gamma interferon background [Units/volume] in Blood by Immunoassay
• Gamma interferon background
• This represents the baseline value for interferon-gamma release assays (IGRA). Elevated levels of IFN-gamma in the background ("Nil") sample may occur with the presence of heterophile antibodies, or to intrinsic IFN-gamma secretion.
• Arbitrary concentration; Blood; EIA; ELFA; ELISA; Enzyme immunoassay; IAA; ID; IFN; Infectious Disease; InfectiousDisease; Lung; MEIA; Microbiology; Point in time; Pulmonary; Pulmonology; QNT; Quan; Quant; Quantitative; Random; Respiratory; SUDS; WB; Whole blood

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