CD11b can be measured or detected using various methods. In histology, immunohistochemistry (IHC) is a common technique that uses antibodies specific to CD11b to stain cells in tissue sections. Flow cytometry is another widely used method that allows for the quantitative analysis of CD11b expression on the surface of individual cells within a mixed population. Western blotting and ELISA are also employed to detect CD11b protein levels in cell lysates or body fluids.