CD 4 Count by Flowcytometry, Whole Blood

CD4 Count by Flow Cytometry, Whole Blood

Test Overview

The CD4 Count by Flow Cytometry, Whole Blood test measures the number of CD4 T-lymphocytes (helper T cells) in the blood. CD4 cells are an essential part of the immune system and help the body fight infections. This test is commonly used to monitor immune function in individuals with HIV/AIDS and other immune-related conditions.

Why This Test is Done

Doctors may recommend this test to:

• Monitor immune system health in HIV-positive individuals
• Assess the progression of HIV infection
• Evaluate response to antiretroviral therapy (ART)
• Detect immune suppression or deficiency
• Help diagnose certain immunological disorders

Sample Required

• Sample Type: Whole Blood
• Container: EDTA Tube

Test Method

• Method: Flow Cytometry

Preparation

• No special preparation or fasting is usually required.
• Inform your doctor about any medications or ongoing treatments.

Normal Reference Range

• Typical CD4 count in healthy adults ranges from 500 to 1500 cells/mm³.
• Reference values may vary slightly between laboratories.

Interpretation of Results

• High CD4 Count: Indicates a stronger immune system.
• Low CD4 Count: May suggest weakened immunity, increased infection risk, or progression of HIV disease.

Symptoms That May Require This Test

• Frequent infections
• Persistent fever
• Unexplained weight loss
• Fatigue
• Swollen lymph nodes

Important Notes

• CD4 count results are often interpreted along with viral load testing.
• Regular monitoring helps guide treatment decisions and assess immune recovery.

Benefits of the Test

• Accurate assessment of immune status
• Helps monitor HIV treatment effectiveness
• Assists in infection risk evaluation
• Supports timely medical intervention