LOINC Code 33921-8: Signal Recognition Particle (SRP) Ab Ql

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 Signal recognition particle Ab. 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: Both

What it does not mean

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

Key facts

• Signal Recognition Particle (SRP) Ab [Presence] in Serum or Plasma
• Signal recognition particle Ab
• Patients with anti-SRP antibodies have very acute polymyositis with cardiac involvement.
• ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Ordinal; Pl; Plasma; Plsm; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serology; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; SRP

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