Absolute CD 3

Blood
Optimal Result: 622 - 2402 /uL.

CD3+ cells are all T-lymphocytes, which includes both CD4+ and CD8+ lymphocyte cells.

This figure is rarely used for making treatment decisions.

Absolute CD3 cells, also known as CD3+ cells, refer to a subset of T-lymphocytes that express the CD3 marker on their surface. CD3 is a protein complex and T cell co-receptor involved in activating both cytotoxic T cells (CD8+ naive T cells) and T helper cells (CD4+ naive T cells). 

Absolute CD3 cell count represents the total number of CD3+ cells in a given blood sample. It includes both CD4+ and CD8+ T-lymphocytes, which are subtypes of T cells with different functions.

The absolute CD3 cell count is rarely used as a sole indicator for making treatment decisions. However, it can provide additional information about the overall population of T-lymphocytes in the immune system. Low absolute CD3 cell count may indicate immunodeficiency or compromised immune function, while high counts may suggest certain conditions such as infections or autoimmune disorders. It's important to interpret the absolute CD3 cell count in conjunction with other clinical information and relevant laboratory tests for a comprehensive assessment of the immune system.

What does it mean if your Absolute CD 3 result is too low?

Low levels of Absolute CD3 in a T + B-Lymphocyte Differential panel can be indicative of a reduced number of T-cells in the blood. This can be significant as T-cells are crucial for immune system function, particularly in identifying and fighting infections and cancer. A decrease in T-cell count may occur in various conditions, including certain immunodeficiency disorders (like HIV/AIDS), after receiving immunosuppressive therapy, or due to certain genetic conditions. Low T-cell counts can lead to a weakened immune response, making the body more susceptible to infections and diseases.

What does it mean if your Absolute CD 3 result is too high?

High levels of Absolute CD3 in a T + B-Lymphocyte Differential panel suggest an increased count of total T-cells. Elevated T-cell levels may be seen in conditions such as certain autoimmune diseases, where the immune system is overactive. They can also occur in response to infections, as the body mobilizes its T-cell population to fight off pathogens. Additionally, high T-cell counts might be observed in some lymphoproliferative disorders. However, the interpretation of these elevated levels should be contextualized within the broader clinical picture and correlated with other medical findings.

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