blood CD45RC(high) CD4 T lymphocyte count blood CD4 lymphocyte count to total lymphocyte count ratio blood CD45RC(high) CD4 T lymphocyte count to total lymphocyte count ratio 2014-05-14T13:13:35Z A calculated measurement in which the number of lymphocytes in a specified sample of blood which express both a relatively high amount of surface CD45RC antigen and surface CD4 antigenin a specified sample of blood is divided by the total number of lymphocytes in the sample, and the result presented as a ratio, fraction, quotient or percentage. D45RC, also known as the leukocyte common antigen, is the protein produced by the PTPRC (protein tyrosine phosphatase, receptor type, C) gene and has been shown to be an essential regulator of T- and B-cell antigen receptor signaling. CMO:0002358 JSmith VT:0008073 blood CD45RChigh CD4 T lymphocyte count as percentage of total lymphocytes blood CD45RChigh CD4 T lymphocyte count to total lymphocyte count ratio blood CD45RChigh CD4(+) T cell count to total lymphocyte count ratio blood T helper 1-like cell count to total lymphocyte count ratio blood TH1 cell percentage blood TH1-like cell count to total lymphocyte count ratio clinical_measurement_ontology