Comprehensive panel for evaluating ANCA-associated vasculitis. First-line testing includes Myeloperoxidase (MPO) and Serine Proteinase 3 (PR3) antibodies. Indirect immunofluorescence (IFA) ANCA IgG by IFA may be used as an adjunct test when clinical suspicion persists despite negative MPO/PR3 results or when low antibody levels are suspected. For evaluation of autoimmune liver disease, use in conjunction with Autoimmune Liver Disease Panel
Note: As part of this panel, ELISA for MPO and PR3 antibodies will be performed, and ANCA IgG by indirect immunofluorescence (IFA) will also be performed concurrently, regardless of ELISA results.
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
Test Code
LAB458
LAB3115
LAB3114
Method
Indirect Immunofluorescence assay
ELISA or EIA
ELISA or EIA
Normal Human: <1:40
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.
See above for individual assays
5 Business Days
Days Performed: M-F
ANCA, Anti-neutrophil cytoplasmic antibodies, MPO (Anti-Myeloperoxidase IgG Antibodies), PR3 (Anti-Proteinase 3 IgG Antibodies)