The analysis of each CD marker alone is a laboratory test used to identify and evaluate specific types of immune cells by measuring the presence of distinctive surface markers (CD markers). These markers are used to identify different white blood cells, helping to understand the function of the immune system. This analysis is commonly performed to diagnose and monitor a variety of health conditions, including immune disorders, blood diseases like leukemia, and certain types of cancer. The test results assist doctors in making accurate treatment decisions and provide the necessary information to understand the body's response to treatment. This analysis is considered an important tool in immunology and oncology, contributing to the improvement of patient healthcare.