To calculate the absolute count of B lymphocytes from total WBC, which formula is used?

The formula to calculate the absolute count of B lymphocytes involves multiplying the total white blood cell (WBC) count by the percentage of lymphocytes and then further by the percentage of B lymphocytes. This method accurately reflects the number of specific cell types within the total WBC population.

When you take the total WBC count, which gives the overall number of white blood cells in a given blood volume, multiplying this figure by the percentage of lymphocytes provides the total number of lymphocytes. From there, applying the percentage of B lymphocytes allows you to determine the count specific to B cells.

This process is foundational in immunology and hematology for assessing various immune responses and can help diagnose conditions linked to immune system malfunctions. The other options involve incorrect combinations that do not relate to B lymphocyte counting, such as using Neutrophils, Monocytes, or Eosinophils percentages, which are irrelevant to the calculation of B lymphocytes' absolute count.