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 PCR assay used to detect parvovirus B19 DNA. The assay is used by the laboratory in certain parvovirus IgM reactive samples to confirm the diagnosis of acute infection. It is also indicated as the primary diagnostic test in immunocompromised patients who may not produce detectable antibodies and to test amniotic fluid or fetal blood in suspect parvovirus related fetal hydrops.
It should be noted that parvovirus DNA can be detectable in blood and tissues for many months or years following acute infection and only high levels of detection are associated with acute infection.
Specimen container paediatric:
EDTA/clotted blood, serum/plasma, CSF, bone marrow, Other sample types can be tested after discussion with Virologists.
Specimen container adult:
EDTA/clotted blood, amniotic fluid, serum/plasma, CSF, bone marrow, Other sample types can be tested after discussion with Virologists.
Minimum volume paediatric:
- 1ml blood/bone marrow
- 0.5ml serum/plasma
- Other sample types can be tested after discussion with Virologists
Minimum volume adult:
- 5ml blood
- 1ml bone marrow
- 1ml amniotic fluid
- 0.5ml serum/plasma
- Other sample types can be tested after discussion with Virologists
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:
N/A
Quality assurance:
Sample referred to Reference Laboratory.
Interpretation:
Interpretative comments are added to reports where applicable
Reference ranges:
None available
Factors affecting result:
If delays likely, refrigerate at 2 to 8 deg C
Referenced Documents:
N/A
Other info:
Referred to Micropathology