White blood cells are an important part of your body’s immune system. They’re responsible for protecting your body against infections and invading organisms. You have five types of white blood cells: ...
A differential blood count is a blood test to check your white blood cell levels, which can indicate the presence of infection, disease, or an allergic reaction. Your doctor might order it as part of ...
A differential blood test enables a doctor to determine how many white blood cells are in the body. There are five types of white blood cell, and the test also shows how many of each type are present.