LOINC Code 34697-3: Alpha 1 antitrypsin actual/normal [Relative mass conc]

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 Alpha 1 antitrypsin actual/Normal. 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

• Alpha 1 antitrypsin actual/normal in Serum or Plasma
• Alpha 1 antitrypsin actual/Normal
• A1; A1A; A1AT; A-1-AT; A1-AT; AAT; Act/Nor; Alfa; Alpha-1-antitrypsin.total; Alpha-1-protease inhibitor; Alpha-1-proteinase inhibitor; Alpha-1-trypsin inhibitor; Chemistry; Control; Hepatology; i; Liver; Lung; Pl; Plasma; Plsm; Point in time; Pulmonary; Pulmonology; QNT; Quan; Quant; Quantitative; Random; Relative mass concentration; Respiratory; RLMCNC; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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