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Test Requirements
 
Title
NEUTROPHIL CYTOPLASMIC ANTIBODY (ANCA, Vasculitides)
Specimen Requirement
<p>1 SST/2.0 mL serum. After 30 minutes of clotting, promptly centrifuge and refrigerate serum. (Includes evaluation for P-ANCA, C-ANCA and atypical P-ANCA)</p>
Methodology
 
Stability
Room Temp 7 days; Refrigerated: 14 days; Frozen 30 days
Reference Range
By Report*
Turnaround
Within 3 days/Set Up: Tues-Sat a.m.
Clinical Use
<p>C-ANCA are present in 84-100% of patients with generalized Wegener granulomatosis (WG). C-ANCA-positive sera containing PR-3 Abs are 80% sensitive and 97% specific for WG. Positive ANCA results obtained in patients with other types of vasculitis typically give a PANCA pattern and are usually associated with autoantibodies to myeloperoxidase (MPO).</p>
Test Code
ANCAQ
 

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