Overview
In molecular biology, CD4 (cluster of differentiation 4) is a glycoprotein found on the surface of immune cells such as T helper cells, monocytes, macrophages, and dendritic cells. CD4 cells are white blood cells that play an important role in the immune system. Your CD4 cell count gives you an indication of the health of your immune system – your body’s natural defense system against pathogens, infections and illnesses. CD4 cells are sometimes also called T-cells, T-lymphocytes, or helper cells.Your CD4 cell count is the number of blood cells in a cubic millimetre of blood (a very small blood sample). It is not a count of all the CD4 cells in your body. A higher number indicates a stronger immune system.
How CD4 Counts Help Treat HIV and AIDS
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 destroy bacteria, viruses, and other invading germs.Your test results help your doctor know how much damage has been done to your immune system.HIV damages your immune system because it targets CD4 cells. The virus grabs on to the surface of a cell, gets inside, and becomes a part of it. When the infected CD4 cell dies, it releases more copies of HIV into he bloom stream.
CD4 count Test Result
CD4 results are given as a number of cells per cubic millimeter of blood. Below is a list of typical results. Your results may vary depending on your health and even the lab used for testing. If you have questions about your results, talk to your health care provider.
Normal: 500–1,200 cells per cubic millimeter
Abnormal: 250–500 cells per cubic millimeter. It means you have a weakened immune system and may be infected with HIV.
Abnormal: 200 or fewer cells per cubic millimeter. It indicates AIDS and a high risk of life-threatening opportunistic infections.
While there is no cure for HIV, there are different medicines you can take to protect your immune system and can prevent you from getting AIDS. Today, people with HIV are living longer, with a better quality of life than ever before. If you are living with HIV, it's important to see your health care provider regularly.HIV-1/2 Antigen and Antibodies, Fourth Generation, with Reflexes test is used to help diagnose HIV-1 and HIV-2 infection, including acute infection, and to differentiate HIV-1 from HIV-2. It is consistent with the HIV diagnostic algorithm proposed by the Centers for Disease Control and Prevention. It can be used in adults, including pregnant women, and in children at least 2 years old.Looking for "where to get bloodwork done near me". Tuhealthy App helps you to find general health panel and labs services near you.