CLL is often diagnosed through routine blood tests that show an elevated number of white blood cells. Further diagnostic tests may include:
- Blood Smear: Examining a sample of blood under a microscope.
- Flow Cytometry: Analyzing blood or bone marrow cells to identify specific markers on the surface of lymphocytes.
- Bone Marrow Biopsy: Taking a sample of bone marrow to examine the types and numbers of cells present.
- Immunophenotyping: Determining the types of proteins present on the surface of cells.
- Genetic Tests: Identifying specific genetic abnormalities associated with CLL.