Proteinase 3 antibodies, IgG-12685

Test info

  
Proteinase 3 antibodies, IgG
  
12685
  
LAB12685
  
PR3
  
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

Specimen

  
Serum
  
  
0.5 mL
  

Spin

  

Gold serum separator (SST) tube

  
  

Spin and separate

  
  

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)

Performance

  
AHL - Immunology: J
  
Mo - Fr
  
2 - 3 days
  

Chemiluminescent

Clinical and Interpretive info

  

< 20 CU   Negative
≥ 20 CU   Positive

Billing

  
83516

Tracking

  
02/10/2017
  
09/12/2018
  
09/16/2020