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, monocytes, macrophages, and dendritic cells.
CD4 Count, HIV, and AIDS: Test and Results and What They Mean
2024年11月11日 · Everyone with HIV should take ART regardless of whether their CD4 count is high or low. Doctors also track CD4 levels to check how well your treatment is working and make changes as needed....
CD4 Count: Normal Range, Viral Load, and What It Means for …
2021年10月5日 · What is a CD4 count? A CD4 count is a blood test to check the amount of CD4 cells in the body. CD4 cells are a type of white blood cell. They play a key role in the immune system. They...
CD4 Lymphocyte Count: MedlinePlus Medical Test
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. They're also called CD4 T lymphocytes or "helper T …
CD4:CD8 Ratio Test — What to Know - WebMD
2024年12月23日 · CD4 and CD8 are two types of white blood cells in your blood. White blood cells help your body fight infections. If you have HIV infection, your doctor may use a CD4:CD8 ratio test to track how...
CD4 Cell Count and HIV - StatPearls - NCBI Bookshelf
2025年1月19日 · CD4 cell count is a laboratory test that measures the number of CD4 T cells. The normal range is between 500 to 1500 cells/mm 3. Clinicians use this test to monitor the destruction of CD4 cells, and it also monitors the effectiveness of antiretroviral therapy.
Understanding Absolute CD4 Count and CD4 Percentage
2024年12月28日 · In its simplest form, we know that CD4 counts of less than 200 places a person with HIV at risk of opportunistic infections. The CD4 percentage, meanwhile, takes into consideration the total number of lymphocytes and is somewhat more predictive of a person's immediate and long-term health.
CD4 count blood test: What it is and what to expect
2023年7月24日 · CD4 counts can help a doctor determine how strong a person’s immune system is. Additionally, it can help a doctor predict someone’s risk of complications or infections. CD4 tests can help a...
CD4 count (or T-cell test) - HIV - Veterans Affairs
2020年6月10日 · 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 obtained from bloodwork as part of laboratory monitoring for HIV infection.
What is a normal CD4 count, CD4% and CD4:CD8 ratio? - i-Base
2018年1月16日 · It is more important to know your CD4 count than your CD8 count. If you get a CD4 count that is ever unexpectedly high or low, then your CD4% (CD4 percentage) can show whether this is a real change in immune function. The CD4% is a more stable marker than the absolute CD4 count.