CD4 Cell Count (T-Cell Test): Results & Normal Range
A CD4 count tells a provider how many T-cells are in a small amount of blood. Providers use the results to stage HIV infections and monitor antiretroviral therapy.
CD4 - Wikipedia
In molecular biology, CD4 (cluster of differentiation 4) is a glycoprotein that serves as a co-receptor for the T-cell receptor (TCR). CD4 is found on the surface of immune cells such as helper T cells, …
CD4 Count: Normal Range, vs. Viral Load, and What it Means for People
Jul 18, 2013 · For people with HIV, CD4 count and viral load are important indicators of health status. Learn what they measure and how they affect HIV treatment plans.
CD4 Count, HIV, and AIDS: Test and Results and What They Mean
Nov 11, 2024 · The CD4 count is a test that measures how strong your immune system is. Find out how it helps your doctor make HIV and AIDS treatment decisions.
Understanding Absolute CD4 Count and CD4 Percentage - Verywell …
Dec 19, 2025 · The CD4 percentage shows what part of your white blood cells are CD4 cells and helps check how strong your immune system is. A CD4/CD8 ratio greater than 1 means a healthy immune …
CD4 Lymphocyte Count: MedlinePlus Medical Test
CD4 cells are a type of white blood cell that circulates throughout the body in the blood. They're also called CD4 T lymphocytes or "helper T cells." That's because they help fight infection by triggering …
CD4 count (or T-cell test) - HIV - Veterans Affairs
Jun 10, 2020 · CD4 cell count is an indicator of immune function in patients living with HIV and one of the key determinants for the need of opportunistic infection (OI) prophylaxis. CD4 cell counts are …
CD4 Count - StatPearls - NCBI Bookshelf
May 1, 2023 · CD4 T cells are human helper T cells that express cluster determinant 4 (CD4) molecules. The CD4 molecule is a member of the immunoglobulin family and primarily mediates adhesion to …
Understanding CD4 T-Cell Count: Test, Range, and Importance
Learn about CD4 T-cell count, its role in immune health, normal ranges, and its significance in HIV monitoring. Understand CD4 count tests, low CD4 symptoms, and treatment insights.
CD4 Count and Viral Load Explained in 2026 - AIDS.org
1 day ago · Understand your CD4 count and viral load in 2026, what undetectable really means, and why small lab changes usually aren’t cause for concern.