PROTEINASE 3 ANTIBODY

Test Code

PR3

CPT Codes
83516

Preferred Specimen

1 Gold tube (gel separator)

Minimum Volume

0.5 mL

Other Acceptable Specimens

or 1 Red tube

Instructions

Centrifuge for complete separation of plasma/serum and red cells. See Specimen Container for appropriate sample type. Refrigerate until tested.

Specimen Stability

2-8°C up to 7 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolyzed or lipemic samples

Methodology
Multiplex Flow Immunoassay

Setup Schedule

M, T, W, Th, F

Clinical Significance

Autoantibodies to Proteinase 3 are indicative of Wegener’s granulomatosis and often decline following treatment. Patients undergoing steroid or immunosuppressant therapy may have negative test results.

Performed By
Alverno Laboratories

Performing Laboratory
Alverno Central Lab
NIM5 (Immunology, Bioplex)

Last Updated: April 25, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.