Test ID: PR3

When combined with other autoantibody tests (ANCA IFA, MPO), this test may help differentiate suspected Wegener granulomatosis (WG) from other types of vasculitis. It can also be useful for monitoring patients with PR3 antibodies. Panel testing options are available. For comprehensive evaluation of suspected vasculitis, refer to the Comprehensive ANCA IFA, with MPO and PR3 panel 

• EPIC Code: LAB3114
• Exsera Order Code: PR3
• CPT Code: 83520

Specimen Type: Serum

Collection Tube: Serum separator tube (SST) or red top

Collection Instructions: Separate serum from cells ASAP or within 2 hours of collection. Then transfer available serum to a standard transport tube.

Volume Required: 1 mL with a minimum of 500 mcL  

Storage/Transport Temperature: Refrigerated/Frozen

Stability: Ambient (up to 8 Hours), refrigerated (up to 2 weeks/14days), frozen (up to 30 days) and avoid freeze/thaw cycles with no more than 3 in total

Unacceptable Conditions: Contaminated, heat-inactivated, containing clots fibrin or gross red blood cells, or severely lipemic hemolyzed or icteric samples

Normal Human: </=20

This test has been cleared by the US Food and Drug Administration and is used per manufacturer's instructions and per Exsera's SOPs. Performance characteristics were verified by Exsera in a manner consistent with CAP/CLIA requirements.

ELISA or EIA

7 Business Days

Days Performed: M-F

PR3, Anti-Proteinase 3 IgG Antibodies

N/A