| Laboratory: | Clinical Immunology |
| Test Name: |
PROTEINASE 3 ANTIBODY (PR3) - (S)
Test Code:
PR3
|
| Clinical Information: |
Testing is performed at St. Boniface Hospital Immunology Lab using an enzyme-linked immunosorbent assay (ELISA).
The ELISA test kit provides a quantitative in vitro assay for human autoantibodies of the immunoglobulin class IgG against proteinase 3 (PR3) in serum to support the diagnosis of Granulomatosis with polyangiitis (Wegener's granulomatosis) |
| Collection Devices: |
Preferred Device:
|
| Specimen Required: |
Blood: 5.0 mL
Serum: 1.0 mL
|
| Referral: |
Serum: 1.0 mL
Separate serum and ship refrigerated, or frozen if greater than 7 days from time of collection.
|
| Requisition: | |
| Reference Values: |
0 – 19 RU/ml
A negative result does not necessarily exclude autoimmune disease. Positive results should not be interpreted in isolation and must be correlated with relevant clinical findings. |
| Availability: |
Weekdays
TAT 5-7 Days
|
| See Also: | |
| More Information: |
PR3 reportable range: 2 – 200 RU/ml
|