What are CD Markers? CD Markers (Cluster of Differentiation) are proteins or antigens found on the surface or inside cells and are used to identify and classify different types of cells, particularly cells of the immune system. CD Marker analysis is an important part of immunophenotyping by Flow Cytometry, which helps evaluate cell populations and diagnose and classify hematological diseases.
What do CD Markers analyze? Depending on the panel, different markers may be analyzed, such as:
The marker panel is selected according to the clinical suspicion and the type of disease being evaluated.
When is the test recommended? CD Markers may be used for:
How is the test performed? Depending on the analysis, the sample may be peripheral blood. The results are analyzed based on the combination of markers and the characteristics of the cells, rather than solely on the presence of a single CD Marker.
Why is it important? CD Marker analysis helps the physician determine what types of cells are present, in what proportion, and whether abnormal cell populations exist. This makes immunophenotyping an important tool in hematological diagnosis.
CD Markers (Cluster of Differentiation) are markers found on the surface or inside cells. They help identify and classify different types of cells, particularly cells of the immune system and blood cells.
The analysis may be recommended to evaluate blood cells and help diagnose or classify leukemias, lymphomas, and other hematological disorders.
Depending on the analysis requested, the sample may be collected from peripheral blood or bone marrow. The cells are analyzed using an advanced laboratory method called Flow Cytometry.
No, fasting is not required for this test.
Depending on the panel, markers such as CD3, CD4, CD8, CD19, CD20, CD22, CD34, CD45, CD5, CD10, CD13, CD33, CD56, and CD117, among others, may be analyzed. The panel is determined according to the clinical suspicion.
The analysis can help identify normal or abnormal cell populations and determine their lineage, such as lymphoid or myeloid.
Not necessarily. The results should be interpreted together with other laboratory tests, symptoms, and clinical history. In some cases, additional tests may be required to confirm the diagnosis.
No. CD Markers may also be used to monitor hematological diseases and evaluate the response to treatment, depending on the case.
Blood sample collection usually takes only a few minutes.
Usually, no special preparation is required for blood collection. Always follow the instructions provided by your physician or laboratory, especially if other tests will be performed at the same time.
The results should be interpreted by a hematologist or specialist physician, as their meaning depends on the combination of markers and the patient's clinical situation.
Yes. Depending on the disease and the purpose of testing, the physician may recommend repeating immunophenotyping to monitor changes in cell populations and the response to treatment.
