CD4 Count Test
Also known as: CD4 Count, EDTA Blood
CD4 Count, EDTA Blood Details in Brief
| Also Known As | CD4 Cell Count, CD4 T-Cell Test, CD4 Lymphocyte Count |
|---|---|
| Purpose | Helps assess immune system strength, monitor HIV/AIDS progression, evaluate antiretroviral therapy (ART) effectiveness, and assess immune function in autoimmune or immunodeficiency disorders |
| Preparation | No special preparation required |
| Fasting | Fasting not required |
| Reporting Time | Same day |
| Cost | 1,400 |
What is a CD4 Count Test?
The CD4 Count Test measures the number of CD4 T-cells (helper T-lymphocytes) in your blood. These white blood cells play a key role in defending your body against infections by coordinating immune responses.
This test is particularly important for people living with HIV/AIDS, as the virus specifically targets and destroys CD4 cells. Monitoring CD4 levels helps doctors assess immune system health, track disease progression, and evaluate how well antiretroviral therapy (ART) is working.
It is also used to monitor immune status in conditions like autoimmune diseases, lymphomas, and after organ transplantation.
The test is performed on an EDTA blood sample using Flow Cytometry, a highly advanced technique that provides accurate immune cell counts.
What Does a CD4 Count Test Measure?
The CD4 Count Test provides insights into the strength and function of your immune system by measuring:
- CD4 T-Cells (Helper Cells): Indicates how well your immune system can respond to infections.
- CD3 and CD45 Cells: Measures total T-cell and lymphocyte levels to understand immune composition.
- CD4 Percentage and Absolute Count: Assesses both relative and total CD4 cell numbers for precise evaluation.
This test helps doctors:
- Diagnose and monitor HIV/AIDS progression
- Evaluate immune recovery after starting ART
- Identify risk of opportunistic infections such as pneumonia, tuberculosis, and candidiasis
- Monitor autoimmune diseases or immunosuppressive therapy
- Guide timing for preventive treatments and vaccinations
CD4 Count Test: Who Needs It and Why It’s Done
What Symptoms May Call for a CD4 Count Test?
Your doctor may recommend a CD4 Count Test if you experience:
- Recurrent infections such as pneumonia, thrush, or skin infections
- Unexplained fatigue, fever, or weight loss
- Night sweats or chronic diarrhoea
- Signs of immune suppression or known HIV infection
Who Should Get a CD4 Count Test?
This test is essential for:
- Individuals diagnosed with HIV/AIDS for regular monitoring
- People undergoing antiretroviral therapy (ART)
- Patients receiving chemotherapy, radiotherapy, or organ transplants
- Those with autoimmune diseases affecting immune function
- Individuals with suspected or confirmed immunodeficiency disorders
Why is a CD4 Count Test Done?
The CD4 Count Test helps doctors assess your immune strength and identify how well your body can fight infections. It is vital for tracking HIV progression and monitoring treatment effectiveness.
Importance of a CD4 Count Test
A CD4 Count Test is a cornerstone of HIV management and immune health assessment. It helps determine when to begin or adjust treatment, monitor ART response, and detect immune recovery.
In people with HIV, rising CD4 counts indicate treatment success, while falling levels may signal treatment failure or opportunistic infection risk. Regular CD4 testing empowers you and your doctor to make timely, informed medical decisions.
CD4 Count Test Booking & Reports – Metropolis Healthcare
How to Book the CD4 Count Test and Get Your Reports?
- Simple Online Booking
Book your CD4 Count Test easily through the Metropolis Healthcare App or website. Choose your preferred slot for home sample collection or visit the nearest Metropolis Lab. - Safe Home Sample Collection
Our trained phlebotomists collect your blood sample safely and hygienically at your convenience. - Sample Tracking Updates
Track your sample from pickup to processing through the Metropolis Healthcare website or app. - Accurate Laboratory Testing
Samples are processed at NABL & CAP accredited Metropolis Labs using advanced Flow Cytometry technology to ensure precise immune profiling. - Quick & Easy Reports
Get your reports promptly through email, WhatsApp, or download them directly from the Metropolis Healthcare website or app.
Is Home Sample Collection for CD4 Count Test Available Near You?
Yes. Metropolis Healthcare provides reliable and safe home collection for the CD4 Count Test. Our expert phlebotomists ensure a smooth collection process, helping you avoid clinic queues and save time.
In how much time will I get CD4 Count Test report?
Reports are generally available on the same day once the sample reaches the lab.
Note: Reporting time may vary slightly depending on your location.
Where can I see or get CD4 Count Test results?
- You can easily access your CD4 Count Test reports through the Metropolis Healthcare App or website.
- Reports are also sent via email or WhatsApp,
- and you can collect a physical copy from your nearest Metropolis Lab.
Interpreting CD4 Count Test Results
What Your CD4 Count Test Results May Indicate
|
Parameter |
Normal Range |
High Values May Indicate |
Low Values May Indicate |
|
CD4 (Helper T Cells) Absolute |
448–1611 cells/µL |
Strong immune system |
HIV infection, immunodeficiency, chemotherapy effect, severe infection |
|
CD4 (Helper T Cells) Percentage |
27–51% |
Robust immune response |
Immunosuppression or advanced HIV |
|
CD3 (T Cells) Percentage |
55–81% |
Normal immune function |
Low immune activity or infection |
|
CD45 (Lymphocytes) Absolute |
1115–4009 cells/µL |
Healthy white cell count |
Lymphopenia or immune depletion |
Understanding Abnormal CD4 Count Test Results by Parameter
|
Parameter |
High Values May Indicate |
Low/Normal Values May Indicate |
|
CD4 Count |
Strong immune function, recovery from infection, effective ART |
HIV progression, severe infection, autoimmune deficiency |
|
CD3 Count |
Normal immune system activity |
Weak immune system or lymphocyte depletion |
|
CD45 Count |
Healthy lymphocyte levels |
Reduced immune cell production or damage |
How Should You Prepare for a CD4 Count Test?
To ensure reliable results, follow these simple steps:
- No fasting required: You can eat and drink normally before the test.
- Timing consistency: Try to get tested at the same time of day for consistent tracking.
- Medication disclosure: Inform your doctor about any medicines you take, especially antiretroviral or immunosuppressive drugs.
- Stay healthy: Avoid testing during acute illness, as infections can temporarily affect CD4 counts.
- Stay calm: Stress can slightly alter immune cell counts, so relax before the test.
How Is a CD4 Count Test Done? (Step-by-Step Procedure)
The CD4 Count Test involves a simple blood draw:
- Preparation: A tourniquet is tied around your upper arm to make veins more visible.
- Cleaning: The puncture site is cleaned with antiseptic.
- Sample Collection: About 3 ml of blood is drawn into an EDTA vacutainer tube.
- Completion: The needle is removed and a bandage is applied.
- Processing: The sample is analysed using Flow Cytometry to measure the number of CD4, CD3, and CD45 cells accurately.
Conditions That May Affect CD4 Count Test Accuracy
Several factors can influence CD4 count readings:
- Temporary infections can cause fluctuations in CD4 levels.
- Stress, fatigue, or poor sleep may slightly alter results.
- Medications such as steroids or chemotherapy can lower counts.
- Biological variation up to 30% is possible without clinical change.
- Time of day, sample handling, and delays in processing may also affect results.
Diseases That a CD4 Count Test Can Help Detect
The CD4 Count Test helps identify and monitor several immune-related conditions:
- Human Immunodeficiency Virus (HIV) infection and AIDS
- Autoimmune diseases (e.g. lupus, rheumatoid arthritis)
- Lymphomas and blood cancers
- Immunodeficiency disorders
- Chronic infections
- Post-transplant immune monitoring
CD4 Count Test Price in Different Cities
The cost of a CD4 Count Test may vary depending on your location. Here's a table showing the approximate price range for the CD4 Count Test at Metropolis Healthcare in major Indian cities:
|
City |
Approximate Cost (INR) |
|
₹ 1,300 to ₹ 1,400 |
|
|
₹ 1,300 to ₹ 1,400 |
|
|
₹ 1,300 to ₹ 1,400 |
|
|
₹ 1,300 to ₹ 1,400 |
The CD4 Count Test cost may vary depending on the city and the specific tests included in the panel. However, Metropolis Healthcare offers competitive CD4 Count Test prices across major cities in India.
References
- Centers for Disease Control and Prevention (1997). Revised guidelines for performing CD4+ T-cell determinations in persons with HIV. MMWR Recomm Rep, 46(RR-2), 1–29. PMID: 9011775
- Thakar M., et al. (2011). Establishment of reference CD4+ T-cell values for the adult Indian population. AIDS Research and Therapy, 8(35). PMID: 21867566
- Giorgi J.V., Hultin L.E. (1990). Lymphocyte subset alterations and immunophenotyping by flow cytometry in HIV disease. Clin Immunol Newslett, 10, 55–61.
- Landay A., Ohlsson-Wilhelm B., Giorgi J.V. (1990). Application of flow cytometry to the study of HIV infection. AIDS, 4, 479–497. PMID: 1971022
- Uppal S.S., et al. (2003). Normal values of CD4 and CD8 lymphocyte subsets in healthy Indian adults. Cytometry Part B (Clinical Cytometry), 52B, 32–36. PMID: 12619037
CD4 Count, EDTA Blood Price
Metropolis Healthcare is a leading diagnostics centre and pathology lab in India equipped with the latest state-of-the-art technologies that provides the CD4 Count, EDTA Blood with a clear pricing structure.
The CD4 Count, EDTA Blood Price in Mumbai is ₹ 1,400 .
We are committed to deliver accurate and quality results from the best labs in India with complete transparency regarding test cost and turnaround time. No matter where you are, we strive to offer patients high-quality service that is affordable and accessible.
Frequently Asked Questions
It measures the number of CD4 T-cells to evaluate immune health, particularly in people with HIV or other immunodeficiency conditions.
Typically between 500 and 1200 cells/µL, but this can vary based on age, health, and testing method.
People with HIV should get tested every 3–6 months or as recommended by their doctor.
Yes. Temporary infections can cause fluctuations, so your doctor may delay testing until recovery.
No. You can eat and drink normally before the test.
Low CD4 levels indicate a weakened immune system and a higher risk of infections, often seen in advanced HIV.
Yes. Effective ART treatment usually leads to a gradual rise in CD4 count, showing immune recovery.
No. It’s also useful for monitoring immune status in autoimmune diseases, cancers, and transplant patients.
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We offer a comprehensive range of 4000+ clinical laboratory tests and profiles, which are used for prediction, early detection, diagnostic screening, confirmation and/or monitoring of the disease.

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