CD4 Cell Count (T-Cell Test): Results & Normal Range
Apr 15, 2025 · A CD4 cell count is a blood test used to see how many of a particular type of white blood cell you have in a small amount of blood (about a drop). Healthcare providers use it to understand …
CD4 Count: Normal Range, vs. Viral Load, and What it Means for People
Jul 18, 2013 · What is a CD4 count? A CD4 count is a blood test to check the number of CD4 cells in the body. CD4 cells are a type of white blood cell. They play a key role in the immune system.
Understanding Absolute CD4 Count and CD4 Percentage
Dec 19, 2025 · The absolute CD4 count is a measurement of how many functional CD4 T-cells are circulating in your blood. The lower the absolute CD4 count, the weaker the immune response.
CD4 count blood test: What it is and what to expect - Medical News Today
Jul 24, 2023 · Learn about what a CD4 count blood test can tell about a person's health. This article also looks at what to expect from CD4 count blood tests and more.
CD4 Lymphocyte Count: MedlinePlus Medical Test
What is a CD4 count? A CD4 count is a blood test that measures the number of CD4 cells in a sample of your blood. CD4 cells are a type of white blood cell that circulates throughout the body in the blood. …
CD4 Count, HIV, and AIDS: Test and Results and What They Mean - WebMD
Nov 11, 2024 · The CD4 count is a test that measures how many CD4 cells you have in your blood. These are a type of white blood cell, called T cells, that move throughout your body to find and …
1. 9 Interpreting CD4 results: CD4 count and CD4 percentage
A CD4 count above 500 is considered “normal”. In high-income countries, a CD4 count below 350 is defined as late diagnosis or advanced HIV. It shows HIV has damaged your immune system. In high …
Understanding CD4 Cells and CD4 Cell Tests | The Well Project
Jan 20, 2025 · The number of CD4 cells a person has – their "CD4 count" – usually decreases as HIV disease gets worse. Your CD4 cell count can help your healthcare provider tell whether your current …
CD4+ Count Test - Kaiser Permanente
Sep 25, 2025 · The number of CD4+ cells helps determine whether other infections (opportunistic infections) may occur. If HIV isn't treated, CD4+ counts generally go down as HIV gets worse.
CD4 count (or T-cell test) - HIV - Veterans Affairs
Jun 10, 2020 · CD4 cells (also known as CD4+ T cells) are white blood cells that fight infection. CD4 cell count is an indicator of immune function in patients living with HIV and one of the key determinants …