ARUP's Laboratory Test Directory

Serine Protease 3 Antibody : 0050527

Mnemonic: PR3

Methodology: Multi-Analyte Fluorescent Detection
Performed: Sun-Sat
Reported: 1-2 days
Specimen Required: Collect:  One 4 mL serum separator tube.

Transport:  1 mL serum at 2-8°C. (Min: 0.5 mL)  Submit specimen in an ARUP Standard Transport Tube.

Pediatric Collection/Transport:  0.15 mL serum at 2-8°C.

Remarks:  Separate serum from cells ASAP.

Unacceptable Conditions:  Plasma, urine, or other body fluids.  Severely lipemic, contaminated, or hemolyzed specimens.

Stability:  After separation from cells:  Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval:
Negative: 19 AU/mL or less
Equivocal: 20-25 AU/mL
Positive: 26 AU/mL or greater
Interpretive Data: Approximately 90% of patients with a P-ANCA pattern by IFA have antibodies specific for MPO. 
Approximately 85% of patients with a C-ANCA pattern by IFA have antibodies specific for PR3.
CPT Code(s): 83516
 
 

 

 

 
All ARUP Sites:        www.aruplab.com     ·     www.arupconsult.com     ·     www.arup.utah.edu     ·     www.childx.org     ·     www.utahblood.org