Imperial Collage Healthcare

PR3 antibodies


Test Background
c-ANCAs are directed against proteinase 3 and are typically associated with Wegener’s granulomatosis. See neutrophil cytoplasmic antibodies (ANCA).


Clinical Indications
Suspected Wegener’s granulomatosis and monitoring treatment.


Reference Range

<2 IU/mL = Neg
2 – 3 IU/mL = Equivocal
>3 IU/mL = Pos


Sample Required
RST (rust top)


Sample Volume
5-10 mL (1 mL serum)


Turnaround Time
5 days


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