LOINC Code 3175-7: Antithrombin Ag IA Qn (PPP)

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 Antithrombin Ag. It is commonly used with the system or sample type PPP.

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: Both
• Method: IA

What it does not mean

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

Key facts

• Antithrombin Ag [Units/volume] in Platelet poor plasma by Immunoassay
• Antithrombin Ag
• Anti thrombin; Antigen; Antigens; Antithrm; Antithrombin III; Antithrombn; Arbitrary concentration; AT; AT III; ATIII; COAGULATION; EIA; ELFA; ELISA; Enzyme immunoassay; Hematology; Heme; Heparin cofactor I; IAA; MEIA; Plas; Platelet poor plasma; Point in time; QNT; Quan; Quant; Quantitative; Random; SUDS; Thrombin inhibitor I; UniversalLabOrders

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