Laboratory test
Antibodies to proteinase 3 (Anti-PR3)
Test code · АП.011
A test for autoantibodies to proteinase 3, used when certain systemic vasculitides are suspected.
- Specimen
- Blood serum
- Turnaround time
- 1–3 days
Collection points for the selected city
About the test
Proteinase 3 is one of the proteins found in neutrophils. Anti-PR3 antibodies are markers tested when ANCA-associated vasculitis is suspected, including granulomatosis with polyangiitis.
This is not a general test for all autoimmune diseases. The result is considered alongside signs of organ involvement, other antibodies and investigations; on its own it neither confirms nor excludes vasculitis.
Why it is ordered
- Measure antibodies to proteinase 3.
- Complement investigation for ANCA-associated vasculitis when indicated.
How to prepare
Before taking the test, ask the laboratory about preparation and specimen collection requirements. Tell your doctor about medicines and recent treatment. Do not stop prescribed medicines on your own.
Where to have the test
All collection pointsCheck whether the test can be taken at your chosen collection point.
Happy Clinic
Rasul Dent
We will help you prepare for your visit
We will answer questions about services and the testing process.