Proteinase 3 antibodies, IgG

Alphabetical Test listing

Proteinase 3 antibodies, IgG-12685

Test name:

Test number:

12685

Excellian order number:

LAB12685

Abbreviation:

PR3

Alternate names:

Wegener's Granulomatosis

Useful for:

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 type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

0.5 mL

Collection instructions:

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

Processing instructions:

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

Transport container:

Gold serum separator (SST) tube

Alternate collection container:

Red serum vial/tube - 5 mL

Alternate processing instructions:

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

Alternate transport container:

False bottom plasma/serum transport vial/tube (AHL)

Transport and stability:

Refrigerated (preferred) - 7 days

Frozen - 21 days

Reason for rejection:

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)

Performing lab:

AHL - Immunology: J

Days set up:

Mo - Fr

TAT:

2 - 3 days

Method:

Chemiluminescent

Reference ranges:

< 20 CU Negative
≥ 20 CU Positive

CPT codes:

83516

Date created:

02/10/2017

Revised date:

09/12/2018

Review date:

09/16/2020