T Cell CountA T cell count is a blood test that measures the number of T cells in your body. A T cell is a type of white blood cell. White blood cells are also called lymphocytes. These cells fight off diseases. The two categories of lymphocytes are T cells and B cells.
Why Is My White Blood Cell Count Low? 6 Causes of Leokopenia
A T cell count is a blood test that measures the number of T cells in your body. A T cell is a type of white blood cell. White blood cells are also called lymphocytes. These cells fight off diseases. The two categories of lymphocytes are T cells and B cells.
The T cells respond to viral infections, while the B cells fight bacterial infections. Your body sometimes has too many or too few T cells. A T cell count may also be known as a thymus-derived lymphocyte count, or a T lymphocyte count. Some T cells contain a CD4 receptor. This receptor is where HIV attaches to the T cell. A low T cell count is more common than a high T cell count.
Low T cell counts usually indicate problems with your immune system or lymph nodes. Low T cell counts may be due to:. A high T cell count can be due to:. A T cell count requires only a small sample of your blood. Certain medications can impact your T cell count, which will alter the results of your test.
Your doctor may ask you to stop taking your medications for a little while, or they may change the dosage before your test. Recent surgery or highly stressful experiences can also affect your T cell count. You should tell your doctor if any of these situations apply to you. Remember, your doctor only needs a small sample of your blood to get a T cell count.
This procedure is also known as a blood draw or venipuncture. Your sample will go to a laboratory, where technicians will count the number and type of white blood cells present. There are very few risks associated with a T cell count. However, people with compromised immune systems often have this test. They may be at greater risk for developing an infection than the rest of the population.
According to the U. Department of Health and Human Services , your T cell count should be between and 1, T cells per cubic millimeter of blood. Your doctor will discuss any further tests you need for a diagnosis. The B and T cell screen is a blood test. It may be used if your doctor suspects that you have a disease that weakens your immune system. What's the perfect gift for someone who's constantly moving and traveling? From headphones to relaxation teas, here's some inspiration on what to give….
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