Pathology tests database

Sample and container requirements

Serum

Minimum volume required

4 ml Blood

Special requirements

None

Patient preparation

None

Sample viability

Store at 4oC

Turnaround time

5 days

Reference range

Negative = <2.0u/mL Weak positive = 2.0-3.0 U/mL Positive = >3.0 U/mL Normal result for this assay is Negative.

Clinical guidance

Some indications: Wegeners granulomatosis, vasculitis If this test is required urgently please contact the Duty Immunologist via Bleep during the normal working hours of the laboratory (Mon-Fri 09.00 to 17.00) PR3 antibodies can be seen in 90% of Wegeners arteritis and have shown a quantitative relationship with disease activity https://labtestsonline.org.uk/tests/ancampopr3-antibodies

Notes