Name: PR3 Ab
Test Name: PR3 Ab
Health Link Test Code: HCPR3
LIS Test Code: PR3
CPT Code(s): 83520
Methodology: Enzyme Immunoassay
Follow levels of this specific antibody in patients with Wegener's granulomatosis who have been shown to have PR3 antibodies (typically associated with C-ANCA pattern).
Days Performed: Mon-Fri, dayshift - day varies.
In-Lab Turnaround Time: 1 week.
Stat In-Lab Turnaround Time: Not available stat.
Collection Container: Red top
Also Acceptable: Red cap with yellow ring (SST)
Collection Volume: 3 mL
Pediatric Collection Volume: 1 mL
No limit at -20° C. Note: Avoid repeat freeze and thaw.
Sample Analyzed: Serum
Testing Volume: 1 mL
Pediatric Testing Volume: 0.3 mL
Centrifuge. Transfer cell free serum to plastic vial. Refrigerate.
Transport specimen to UWHC Hospital Laboratory. Transport with coolant pack if coming from clinic locations.
Microbially contaminated, grossly hemolyzed, lipemic and turbid specimens are not acceptable.
0 days and up: 0-20 Units
PR3 Ab Interpretive Guidelines:
> 30 Units
|Moderate to Strong Positive|
Interpretation Type: Reference Interval