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
Reference range: 

Dependent on age. Available on request and on each results report.

Synonyms or keywords: 
T4T8, CD4 count, CD4:CD8 ratio, immune monitoring, HIV
Sample type and Volume required: 
Whole Blood EDTA. Minimum sample volume 1mL.
Turnaround time: 
2 working days. Urgent analysis available upon request, please contact the laboratory.
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.
Contacts:
Special Haematology Department at Guy's and St Thomas' Hospital
St Thomas’ Hospital
5th Floor - North Wing
Westminster Bridge Road
London SE1 7EH
Telephone - 0207 188 8189

Guy’s Hospital
4th Floor - Southwark Wing
Great Maze Pond
London SE1 9RT
Telephone - 020 7188 3421

Flow Cytometry/Immunophenotyping Laboratory at Guy's and St Thomas' Clinical Advisory Service
Monday - Friday 9:00 - 17:00
Richard.Dillon@gstt.nhs.uk
For clinical advice or interpretation of results, please contact the laboratory in the first instance.

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Last updated: 17/10/2019