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Proteinase 3 Antibodies
Alternative Names/Synonyms
ANCA, Anti-Neutrophil Cytoplasmic Antibodies, Anti-PR3 Antibody, PR3
Laboratory
Core Laboratory & Transfusion Medicine
Sub-section
Biochemistry
Specimen Type
Blood
Test Code
PR3A2
Clinical Significance
Assisting in the diagnosis of Wegener granulomatosis.
This has replaced previous ANCA testing by immunofluorescence
.
Specimen Requirements (Sample Type)
Serum
Specimen Requirements (Volume (mL))
0.5 mL
Specimen Requirements (Tube Type)
Serum (Gold SST)
Collection Containers – Tube Types
Collection Requirements
Blood Collection Instructions
Sample Stability
Room Temperature
: 48 hours
Fridge
: 2 weeks @ 2-8°C
Freezer
: 1 year @ -20°C
Cause for Rejection
Specimen Acceptability and Transport Guidance
Instrument, Methodology
BIO-FLASH, immunoassay
Test Availability
Weekdays
Routine Turnaround Time
1 week
Reference Ranges
< 20 CU
In case of discrepancies, always interpret results using reference ranges as stated on laboratory reports and/or electronic patient chart.
Laboratory Contact Information
416-586-4800 extension 4688