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Test Code Billings Clinic: 3225 Proteinase 3 (PR3) Antibody, IgG, Serum

Additional Codes

Ordering Mnemonic
MayoAccess: BCL869

 

Performing Laboratory

Billings Clinic Laboratory: Immunology

Useful For

This test is used as an aid in the diagnosis of Wegener's Granulomatosis.

Methodology

Chemiluminescent Immunoassay

Specimen Requirements

  • Draw blood in a plain, red-top or red gel tube(s).
  • Spin down and send 1 mL of serum frozen in plastic vial.

Storage/Stability

Specimen Type Temperature Time
Serum Refrigerated 48 hours
  Frozen (preferred) 1 year
  Ambient (spun) 8 hours

 

Reject Due To

  • Specimen other than serum
  • Gross hemolysis
  • Gross icterus
  • Gross lipemia
  • Heat-treated specimen
  • Microbially contaminated specimen

Reference Values

< 20 CU (Chemiluminescent Units)

 

Interpretive Remark:  The following results were obtained with the INOVA QUANTA Flash PR3 Chemiluminescent immunoassay.  Values obtained with different manufacturers' assay methods may not be used interchangeably.

Day(s) Test Set Up

Monday, Wednesday, Friday (Dayshift)

Test Classification and CPT Coding

86021 - Antibody identification; leukocyte antibodies

LOINC Code Information

Reporting Name LOINC Code
Proteinase 3, IgG Ab 48408-9