Turnaround times
The quoted turnaround time is from sample receipt in the laboratory, to results authorisation in the Laboratory Information Management system. The times do not include transport of specimen to the laboratory or the administrative process to print and post/email reports. Service users must allow for transport and reporting time when ordering tests.
Clinical background:
Myeloperoxidase (MPO) antibodies are part of the first-line testing protocol for small vessel vasculitis alongside Proteinase 3 (PR3). Positive MPO antibodies point towards microscopic polyangiitis (MPA).
Specimen container paediatric:
Serum-Plain tube
Specimen container adult:
Serum-SST
Minimum volume paediatric:
1 ml
Minimum volume adult:
1 ml
Special requirements:
None
Freq analysis:
Daily
Add on test:
All urgent add ons via telephone on : 0191 2821890, and must be confirmed via email to [email protected]
Quality assurance:
UK NEQAS for Autoimmune Serology ANCA and GBM
Interpretation:
Antibodies to MPO are not specific and may be detected in a range of vasculitic conditions.
Reference ranges:
Normal Range: 0 – 0.9 Antibody Index (AI)
Other info:
Reported as a number between 0.2 and 8.0 AI