LOINC Code 33552-1: Platelet aggregation (PRP) [Rel units/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 Platelet aggregation. It is commonly used with the system or sample type PRP.

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: Aggregometry.ristocetin induced.900 ug/mL

What it does not mean

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

Key facts

• Platelet aggregation in Platelet rich plasma by ristocetin induced 900 ug/mL
• Platelet aggregation
• Agg; Aggr; COAGULATION; Hematology; Heme; mcg; PA; Pl; Platelet rich plasma; Platelets; Platelt; Plt; Point in time; QNT; Quan; Quant; Quantitative; Random; Rist 900 ug/mL; RlACnc; Thrombocyte; Thrombocytes

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