CD4:CD8 Ratio
- Description
- Flow cytometry for HIV immune monitoring, CD3, CD4, CD8 counts. Test for internal HIV clinic (Harrison Wing) only. All other senders will be requested as 'Lymphocyte subset analysis'
- Clinical details
- HIV, CD4 count
- Related condition
- Reference range
Dependent on age. Available on request and on each results report.
- Synonyms
- T4T8, CD4 count, CD4:CD8 ratio, immune monitoring, HIV
- Testing site
- Synnovis : Blood Sciences : St Thomas' Hospital
- Laboratory
- Flow Cytometry/ Immunophenotyping
- Sample type and volume required
- Whole Blood EDTA. Minimum sample volume 1mL.
- Special sample instructions
Test for internal HIV clinic (Harrison Wing) only. All other senders will be requested as 'Lymphocyte subset analysis'
- Storage and transport
- Store and transport samples at ambient temperature, do not refrigerate. Samples ≥48hrs old are unsuitable for analysis.
- Turnaround time
- 2 working days. Urgent analysis available upon request, please contact the laboratory.
- Contacts
Flow Cytometry/Immunophenotyping Laboratory at Guy’s and St Thomas’ Clinical Advisory Service
Guy’s Hospital
Phone: 020 7188 2709 Monday – Friday 9:00 – 17:00
4th Floor – Southwark Wing
Great Maze Pond
London SE1 9RTSt Thomas’ Hospital
Phone: 020 7188 3421 Monday – Friday 09:00 – 17:00
5th Floor – North Wing
Westminster Bridge Road
London SE1 7EH