LOINC display name : T-cell helper (CD4) subset panel (Bld);
LOINC long common name : T-cell helper (CD4) subset panel - Blood;
LOINC short name : T-cell CD4 subset pnl Bld;
LOINC description : Absolute CD4 T-cell counts are required to monitor immune status of HIV patients both
for prognosis and to decide about initiating treatment. Measuring the absolute CD4
T-cells requires a measure of the absolute lymphocyte count. This can be obtained
from the cell counters that produce a CBC with auto diff. It can also be obtained
directly from the flow cytometer by using special beads and counting cells with CD45
markers- which identify lymphocytes. CDC recommended the single platform approach
(Guidelines for Performing Single-Platform Absolute CD4 T-Cell Determinations with
CD45 Gating for Persons Infected with Human Immunodeficiency Virus MMR. January 31,
2003 / 52(RR02);1-13);
Has component