This private haematology blood test uses multiparameter flow cytometry to characterise white blood cell surface and cytoplasmic markers in peripheral blood. The catalogue test price is £753.13 plus a £50 phlebotomy fee, with results in 5 days.
Immunophenotyping is requested by haematologists and GPs when a full blood count or blood film shows persistent lymphocytosis, atypical lymphocytes or suspected lymphoproliferative disorder.
Written by Mr Stephen Lingam. Reviewed by Dr Mohammad Bakhtiar (GMC 4694470) on 18/10/2026.
It is most often requested to investigate an unexplained high lymphocyte count on a full blood count and check for clonal B-cell or T-cell populations.
No. This test is performed on a standard venous peripheral blood sample taken at 117a Harley Street.
Because live white blood cells are analysed by flow cytometry, weekday appointments (Monday to Thursday before mid-afternoon) ensure the freshest sample reaches the haematology laboratory.
Consultant haematopathologist and flow cytometry reporting usually takes around 5 working days.