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What is a CD4 & CD8 COUNTS: FLOW CYTOMETRY?

CD4 & CD8 Counts by Flow Cytometry is a test that measures two important types of T lymphocytes in the blood. CD4 cells (helper T cells) and CD8 cells (cytotoxic T cells) play crucial roles in regulating and defending the immune system. The purpose of this test is to evaluate immune function, monitor conditions like HIV infection, and assess immune recovery or suppression during treatment.

Additional Information

Also known as/ Other names: CD4/CD8 Count by Flow Cytometry, T-Cell Subset Analysis (CD4/CD8), CD4/CD8 Immunophenotyping
Parameters: 1
Recommended for: M/F/Others
Sample Type: Blood
Patient Preparation: No prior preparation is needed
Reports: 2 days

FAQs

Why are CD4 and CD8 cells important?

CD4 cells help coordinate immune responses, while CD8 cells destroy infected or abnormal cells. Their balance is vital for effective immunity.

Who should undergo this test?

Patients with HIV, immune deficiencies, or those receiving immunosuppressive therapy may be advised to undergo CD4 & CD8 counts.

What conditions can this test detect?

It helps monitor HIV infection, immune deficiencies, autoimmune diseases, and the effects of immunosuppressive therapy.

Can CD4 & CD8 counts change over time?

Yes, counts may vary with disease progression, infections, or treatment, making repeated testing useful for monitoring.

What does a low CD4 count mean?

A low CD4 count indicates weakened immunity, often seen in HIV infection or other immune-suppressing conditions.

What does a high CD8 count suggest?

High CD8 counts may indicate active infection, immune activation, or certain autoimmune conditions.

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