CD8 Count

No preparation required

MRP220025% off
circle logo₹83 cashback

testsTest(s) Included (2)

  • CD8 Count

    2 tests included



blood sample




Age group

7 years & above

White blood cells are the determinants of immune system strength in the human body. CD4 and CD8 are two kinds of lymphocytes, a type of white blood cells (WBCs) which regulate immunity by controlling the spread of any infection. CD8 are the cytotoxic T-lymphocytes that are responsible for combatting alien cells such as cancer, viral infections, etc.

CD8 lymphocytes also control the spread of primary and secondary infections. During the first occurrence, it effectively restricts the spread of the infection. As soon as the infection clears, the T-cells die, but some remain in the body as memory cells for preventing future or secondary infections.

There are two kinds of CD8 T lymphocytes which control the bodily response for immunity against diseases. CD8 T lymphocytes kill infections by attacking virus-infected cells and producing antivirus cytokines. The cytokines are the signal protein in the body. When released, it activates the immune system for mediating and regulating through production as well as the growth of different blood cells.

On the other hand, CD8-positive suppressor T-cells restrain the hyperactivity of the immune system. Due to the deficiency of this type of T-cells, the body becomes more prone to developing autoimmune diseases.

Some of the most common illnesses due to cytotoxic T-lymphocytes imbalance include:

  • Multiple sclerosis
  • Rheumatoid arthritis
  • Systemic lupus erythematosus
  • Sjögren's syndrome
  • Dermatomyositis
  • Systemic sclerosis
  • Primary biliary cirrhosis
  • Ulcerative colitis
  • Crohn's disease
  • Psoriasis
  • Type 1 diabetes mellitus
  • Pernicious anemia

Other than causing autoimmune diseases, CD8 cytotoxic T-lymphocytes vary, expand and elevate during the early days of HIV infections.

Both the rise and fall in the CD8 T-cells levels are an indicator of underlying infection and disease. To capture the illness progression on time and facilitate optimum treatment, medical professionals suggest the Cd8 Count test.

The diagnosis consists of: 

  • Analysis of Cd8 lymphocyte count absolute, which includes both the suppressor and killer T-cells, for finalizing the treatment type.
  • Cd8 lymphocyte count percentage report observes the proportion of CD4 to CD8 to understand the immune system’s current functionality.

The normal range for the CD8 count test is 150 to 1000. It provides a general analysis of the immune response of the body. At the same time, the Cd8 lymphocyte count percentage provides insight into the relative growth of the T-cells, which usually occurs in HIV patients.

In order to provide the most accurate treatment as per the immune system’s functionality, the specialist recommends a comprehensive Cd8 Count test. Upon request, a lab technician will collect the patient's blood using a clean surgical needle. After drawing it out, the specimen is safely stored in a vial for Cd8 count analysis.

Apollo 24|7 offers an experienced team of credible technicians to collect and diagnose the CD8 levels.

The blood sample collection usually has no side effects. However, you may experience:

  • Slight bleeding 
  • Mild bruising at the site of needle insertion
  • Minor rashes
  • Feeling dizzy or nausea (Due to the anxiety induced by the fear of needles)
  • Spot soreness or redness

The symptoms disappear within 1-3 days. However, if the side effects prolong, it’s best to consult a doctor at the earliest.

faqFrequently Asked Questions (FAQs)

CD8 T cells are important in providing a robust host defence system against pathogens. These cytotoxic T cells can kill any infectious cell which carries pathogens. They act by identifying foreign peptides on the infected-cell surface bound to MHC class I molecules.
There are various factors that can cause changes in the CD4/CD8 ratio, such as: Pregnancy Chronic infection Anemia Women with HIV  Consuming too much alcohol Medicines like corticosteroids
CD8 translates as a cluster of differentiation 8, which is transmembrane glycoprotein for T-cell receptors.
The normal range of CD4 and CD8 percentage in a healthy human body is 40.3% and 31.3%, respectively. Basically, for the average blood components of 2114 cells/microl total lymphocytes, 865 cells/microl of CD4, and 552 cells/microl of CD8.
CD4 and CD8 activate the T-cells signaling by binding with the receptor molecules. The interaction of CD4 reduces the antigen peptides and increases cytokine. This mechanism offers immunity against the spread of infections by regulating the pathogen distribution and killing the infected cells.
There are two kinds of T-cells that define the health of the immune system: CD4 or T4 cells are the helper cells that become active as soon as it detects a pathogen. CD8 cells are the suppressor cells that activate the combat mechanics of the immune system to kill the pathogen-carrying cells.
CD4 to CD8 ratio is helpful in monitoring the immune system to predict the likely course of autoimmune diseases. The proportion is considered normal when the value comes in between 1.0 to 4.0. In a healthy individual, the percentage of CD4 is between 30%-60%, whereas CD8 T-cells are at 10%-30%.

Most Popular tests & packages

Complete Blood Count (CBC) | Glucose, Fasting | HbA1c, Glycated Hemoglobin | Dengue NS1 Antigen - Elisa | Complete Urine Examination | Glucose, Post Prandial (PP), 2 Hours (Post Meal) | Lipid Profile | Liver Function Test (LFT) | Thyroid Profile (Total T3, Total T4, TSH) | Thyroid Stimulating Hormone (TSH), Serum | C - Reactive Protein CRP (Quantitative) | Creatinine, Serum | Platelet Count | Culture And Sensitivity Urine | Peripheral Smear For Malarial Parasite (MP) | Renal Profile/Renal Function Test (RFT/KFT) | Widal Test ( Slide Method ) | Glucose, Random | Dengue Profile - Elisa | Uric Acid - Serum | Erythrocyte Sedimentation Rate (ESR) | Total Beta - HCG (TB-HCG) | Hemoglobin | Hemogram | Electrolytes - Serum | Vitamin B12 | Prothrombin Time (PT/INR) | Potassium - Serum / Plasma | Thyroid Profile - Free (FT3, FT4, TSH) | Urea And Creatinine | Sodium - Serum | Vitamin D - 25 Hydroxy (D2+D3) | Blood Group ABO And RH Factor | Dengue Fever NS1 Antigen, Rapid | Hiv Rapid

CD8 Count near you

CD8 Count in Beeramguda | CD8 Count in Begumpet | CD8 Count in Kondapur Junction | CD8 Count in Kondapur | CD8 Count in Kukatpally Housing Board Colony | CD8 Count in Kukatpally Metro Parking | CD8 Count in Lingampally | CD8 Count in Madhapur | CD8 Count in Manikonda | CD8 Count in Miyapur | CD8 Count in My Home Jewel Road | CD8 Count in Nizampet | CD8 Count in Sri Lakshmi Residency | CD8 Count in Malkajgiri | CD8 Count in Gachibowli | CD8 Count in Gopanapalli | CD8 Count in Jagadgiri Gutta | CD8 Count in Kanaka Durga Temple | CD8 Count in Masjid Banda | CD8 Count in Mayuri Nagar Welfare Association | CD8 Count in Palm Breeze Rd | CD8 Count in Pragathi Enclave | CD8 Count in Rtc Colony | CD8 Count in Kothaguda X Road | CD8 Count in Rethibowli | CD8 Count in Banjara Hills | CD8 Count in Borabanda | CD8 Count in Kukatpally | CD8 Count in Hitech City | CD8 Count in Bhaskar Nagar | CD8 Count in Manikonda | CD8 Count in Balanagar Township | CD8 Count in Hmt Township | CD8 Count in Nizampet | CD8 Count in Administrative Buildings | CD8 Count in Amberpet | CD8 Count in Attapur | CD8 Count in Central Secretariat | CD8 Count in Dattatreya Colony | CD8 Count in Falaknuma | CD8 Count in Hasannagar | CD8 Count in I.e.nacharam | CD8 Count in Jubilee Hills | CD8 Count in Malakpet Colony | CD8 Count in Raj Bhawan | CD8 Count in Sitaphalmandi | CD8 Count in Cuc | CD8 Count in Manuu | CD8 Count in Bowenpally

Why should Apollo be your preferred healthcare partner?

  • 40 Years of legacy and credibility in the healthcare industry.
  • NABL certified multi-channel digital healthcare platform.
  • Affordable diagnostic solutions with timely and accurate test results.
  • Up to 60% discount on Doorstep Diagnostic Tests, Home Sample Collection.
  • An inventory of over 100+ laboratories, spread across the country, operating out of 120+ cities with 1200+ collection centers, serving over 1800+ pin codes.

The information mentioned above is meant for educational purposes only and should not be taken as a substitute to your Physician’s advice. It is highly recommended that the customer consults with a qualified healthcare professional to interpret test results