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  1. CD4 - Wikipedia

    Image of CD4 co-receptor binding to MHC (Major Histocompatibility Complex) non-polymorphic region. In molecular biology, CD4 (cluster of differentiation 4) is a glycoprotein that serves as a co-receptor …

  2. CD4 Cell Count (T-Cell Test): Results & Normal Range

    Apr 15, 2025 · 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.

  3. 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.

  4. CD4 Count: Normal Range, vs. Viral Load, and What it Means for People

    Aug 12, 2025 · 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.

  5. CD4 T Helper Cells: Types and Functions - Verywell Health

    3 days ago · CD4 T helper cells are crucial because they trigger the body's immune response to fight off infections and diseases.

  6. 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 …

  7. 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.

  8. CD4 Test - Purpose, Results, Normal Range, and more

    The CD4 test is a vital blood test used to measure the number of CD4 T-lymphocytes (CD4 cells) in the body. CD4 cells are a type of white blood cell essential for immune system function. They play a …

  9. CD4+ Count Test - Kaiser Permanente

    Sep 25, 2025 · CD4+ cells are a type of white blood cell. White blood cells are important in fighting infections. CD4+ cells are also called T-lymphocytes, T-cells, or T-helper cells. HIV infects CD4+ …

  10. Understanding High CD4 Count: Implications and Insights

    CD4 T cells, pivotal components of the immune system, play an intricate role in orchestrating the body's defense against infections and diseases. A high CD4 count often signifies a robust immune …