Proteinase 3 antibodies, IgG

Alphabetical Test listing

Proteinase 3 antibodies, IgG-12685

Proteinase 3 antibodies, IgG
Wegener's Granulomatosis
  • Evaluating patients suspected of having Wegener granulomatosis (WG)
  • Distinguishing between WG and other forms of vasculitis, in conjunction with MPO/Myeloperoxidase Antibodies, IgG, serum and ANCA/ Cytoplasmic Neutrophil Antibodies, serum (may be obtained as VASC/ Antineutrophil cytoplasmic antibodies vasculitis panel, serum)
  • May be useful to follow treatment response or to monitor disease activity in patients with myeloperoxidase antibodies
0.5 mL

Immediately following collection, thoroughly mix sample by gently inverting 5 times

  1. Allow sample to clot for a minimum of 30 minutes
  2. Spin within two (2) hours of sample collection

Gold serum separator (SST) tube

  1. Allow sample to clot
  2. Spin
  3. Transfer serum to a False bottom plasma/serum transport vial/tube (AHL), labelled as serum, within two (2) hours of sample collection

Refrigerated (preferred) - 7 days

Frozen - 21 days

  • Improper labels (unlabeled or mislabeled)
  • Hemolysis (some procedures)
  • Plasma
  • Delay in transport
  • Improper storage temperature affecting results
  • Improper container
  • Leaking container resulting in compromised specimen
  • Quantity not sufficient (QNS)
AHL - Immunology: J
Mo - Fr
2 - 3 days



< 20 CU   Negative
≥ 20 CU   Positive