Proteinase-3 Antibody
Test Summary
Autoimmune vasculitis diseases are characterized by abnormal immune responses that result in inflammation and necrosis of blood vessels. The immune dysfunction may be triggered by infection, autoimmune disease, or exposure to a drug; often the cause is unknown. ANCA-associated vasculitis diseases are often characterized by the size of the blood vessels involved. The diseases present with diverse clinical features and are often rapidly progressive, causing irreversible injury to the vessels of the organs affected, such as the kidneys and lungs.
Goodpasture's Syndrome, first described by Ernest Goodpasture in 1919, is characterized today by the triad of diffuse lung hemorrhage, proliferative nephritis and the presence of anti-GBM autoantibodies, which are present as linear deposits along the glomerular and alveolar basement membranes, and as circulating antibodies.
Aliases
- N/A
Specimen Collection
Special Instructions
Preferred Specimen
Minimum Volume
Instructions
Patient Preparation
Storage
Transport Temperature
Specimen Stability
- Room temperature: 7 days
- Refrigerated: 14 days
- Frozen: 30 days
Limitations
Other Acceptable Specimens
Unacceptable Specimens
Order Code
EPIC (Premier) Code
Includes
CPT Code
- 86021
Billing Code
- 670442
CPT Statement
Methodology
FDA Status
Physician Attestation of Informed Consent
Testing Laboratory
14225 Newbrook Drive
Chantilly VA, 20153
Department
Reference Range
<1.0 AI | No antibody detected | |
≥1.0 AI | Antibody detected |
Setup Schedule / Expected Turnaround Time
Specimen Collection
Special Instructions
Preferred Specimen
Minimum Volume
Instructions
Patient Preparation
Storage
Transport Temperature
Specimen Stability
- Room temperature: 7 days
- Refrigerated: 14 days
- Frozen: 30 days
Limitations
Other Acceptable Specimens
Unacceptable Specimens
Result Information
Methodology
Testing Laboratory
Reference Range
<1.0 AI | No antibody detected | |
≥1.0 AI | Antibody detected |