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:
This is a serological assay used to detect IgM antibodies to Parvovirus B19. It is used as the diagnostic test for recent parvovirus B19 infection. IgM antibodies are produced early in infection and normally persist for about 4 weeks. Parvovirus is responsible for ‘slapped cheek disease’ (erythema infectiosum) in children and also rash and arthralgia in adults. It can cause anaemia and aplasia in those with underlying haemoglobinopathies and immunosuppression. Low level IgM results can be non-specific and some samples are sent for Parvovirus PCR to confirm the diagnosis. IgM response may be absent or delayed in the immunocompromised and a parvovirus PCR should also be sent for diagnosis.
Specimen container paediatric:
Clotted blood
Specimen container adult:
Clotted blood – Gold SST
Minimum volume paediatric:
1 ml
Minimum volume adult:
5 ml
Special requirements:
Send to laboratory as quickly as possible. If delays likely, refrigerate at 2-8 deg C.
Sample stability:
Stable for up to 24 hrs.
Transport requirements:
Standard
Add on test:
Possible up to 5 days
Quality assurance:
UK National External Quality Assurance Scheme (UKNEQAS).
Interpretation:
Interpretative comments are added to reports where applicable
Reference ranges:
None available
Factors affecting result:
If delays likely, refrigerate at 2-8 deg C.
Referenced Documents:
N/A
Other Info:
N/A