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CD3 (NATURAL KILLER CELLS), in Delhi

CD3 (NATURAL KILLER CELLS) in Preet Vihar, Delhi: This test measures CD3, a protein found on most T lymphocytes, and also assesses natural killer (NK) cells as part of an immune cell check. Book with GetVisit for NABL-accredited results, same-day slots, home collection and cashless OPD.

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SAMPLE TYPE
Blood
FASTING REQUIRED
No
GENDER
Male/Female
GET REPORTS IN
24 hours
TEST INCLUDED
1
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20K+Customers
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CertifiedLabs
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What is a CD3 (NATURAL KILLER CELLS) Test in Delhi ?

What is CD3 (NATURAL KILLER CELLS)?

This test measures CD3, a protein found on most T lymphocytes, and also assesses natural killer (NK) cells as part of an immune cell check. CD3 marks T cells that coordinate immune responses. Deficiencies develop over months before symptoms appear. Because symptoms like fatigue and hair loss are non-specific, targeted blood testing is the only reliable way to confirm the diagnosis.

What does CD3 (NATURAL KILLER CELLS) measure?

NK cells help destroy infected or abnormal cells. Measuring these cells shows how well your immune system is working. Doctors use results to detect immune deficiency, monitor HIV or chemotherapy effects, evaluate autoimmune disease, or look for blood cancers. Low or high counts can come from infections, medications, bone marrow problems, or inherited immune disorders.

What symptoms suggest CD3 (NATURAL KILLER CELLS) may be needed?

A doctor may recommend CD3 (NATURAL KILLER CELLS) when a patient reports persistent fatigue, hair thinning, brittle nails, bone or joint pain, frequent infections, poor wound healing, numbness or tingling in the hands or feet, and low mood or poor concentration. If you have these symptoms, GetVisit offers booking and home collection across Mayur Vihar, Rohini, and other parts of Delhi.

How is CD3 (NATURAL KILLER CELLS) performed?

At a GetVisit-partnered lab in Mayur Vihar or Rohini, Delhi, a certified phlebotomist cleans the inner elbow, locates a vein, and draws the required blood (typically 5 to 10 mL). The procedure takes 3 to 5 minutes. You feel a brief pinch at insertion and mild pressure during collection, then can eat, drive, and resume all activities immediately afterwards.

How accurate is CD3 (NATURAL KILLER CELLS)?

Every GetVisit sample from Mayur Vihar, Rohini, and across Delhi is processed at NABL-accredited labs that use internationally calibrated reference standards, pass external quality assessments, and maintain internal quality control at every shift. Reports are accepted by all major hospital networks, specialists, and insurance providers in India.

Are there any risks to CD3 (NATURAL KILLER CELLS)?

Risks are minimal. Some people notice a small bruise or brief soreness at the needle site, which settles within a day or two. Serious problems such as infection are very rare when sterile, single-use equipment is used, as it is at every GetVisit collection in Mayur Vihar and Rohini, Delhi.

Did you know?

Natural killer (NK) cells are typically CD3‑negative; CD3 is a T‑cell receptor complex not expressed on conventional NK cells.

CD3 (NATURAL KILLER CELLS) Test Preparation in Delhi

Fasting and diet:

You do not need to fast. Have your normal meals, but skip a heavy, oily meal and alcohol the evening before as a general precaution.

What to bring:

Carry your test requisition, a government-issued ID, and any previous reports so results can be compared over time.

Medication:

Hold the specific vitamin or mineral being tested for at least 48 hours beforehand, so the result reflects your stored levels rather than a recent dose.

Timing and slots:

An early slot works best, especially for fasting tests. Home collection is available across Lajpat Nagar, Janakpuri, and the rest of Delhi.

CD3 (NATURAL KILLER CELLS) Test Parameters in Delhi

Single standalone test:

CD3 (NATURAL KILLER CELLS). Can be ordered individually or as part of a preventive health package on GetVisit.

Why Take a CD3 (NATURAL KILLER CELLS) Test in Delhi ?

When does a doctor order CD3 (NATURAL KILLER CELLS)?

CD3 (NATURAL KILLER CELLS) is usually part of a lymphocyte subset panel that checks T cells and NK cells. Doctors order it for recurring infections, unexplained fatigue, abnormal blood counts, or to monitor HIV, chemotherapy, or immune-suppressing drugs.

Who should get CD3 (NATURAL KILLER CELLS) done in Delhi?

Vitamin D deficiency is severe in Delhi due to a counterintuitive combination of factors: winter smog (PM2.5 particulate matter physically blocks UV radiation for 4 to 5 months), the widespread practice of wearing full-sleeve winter clothing, and indoor office culture across Connaught Place, Saket, Vasant Kunj, and the growing Dwarka-Rohini suburban corridor. Ironically, Delhi has abundant sunshine but its smog effectively converts it to a vitamin D-deprived city from October to February. Those who benefit most from regular CD3 (NATURAL KILLER CELLS) testing include people on restrictive diets, those recovering from illness, and anyone with persistent tiredness. Confirming a deficiency in Delhi allows correctly dosed supplementation rather than guesswork.

What conditions can CD3 (NATURAL KILLER CELLS) help diagnose?

It helps diagnose immune deficiencies, blood cancers, and autoimmune disease. Abnormal results may come from infections, medications, bone marrow disorders, or inherited immune problems, especially with family history.

What do CD3 (NATURAL KILLER CELLS) results mean?

Serum ferritin below 12 ng/mL: iron deficiency. Ferritin 12–30 ng/mL: iron depletion without yet affecting haemoglobin. Folate below 3 ng/mL: folate deficiency. Zinc below 70 µg/dL: zinc deficiency, associated with impaired immunity and wound healing.

How often should CD3 (NATURAL KILLER CELLS) be repeated?

After starting supplementation, recheck at 8 to 12 weeks to confirm levels are correcting, then every 6 to 12 months once replete. People with ongoing risk factors, restrictive diets, malabsorption, or limited sun exposure, benefit from annual screening even without symptoms.

What happens after CD3 (NATURAL KILLER CELLS) results are ready?

Book a follow-up consultation after reviewing your results. GetVisit stores your reports alongside your previous test history, so your doctor sees your full health trend, not just today's snapshot. This longitudinal context significantly improves the clinical value of each repeat test.

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Frequently asked questions

For any unanswered questions, reach out to our support team via email. We will assist you as soon as possible

Are NK cells positive for CD3?plus

Natural killer (NK) cells are typically CD3‑negative; CD3 is a T‑cell receptor complex not expressed on conventional NK cells. Human NK cells commonly express CD56 and CD16 instead. However, a distinct population called NKT cells co‑express T‑cell markers (including CD3) and NK markers , these are immunologically different from classic CD3‑negative NK cells.

Does NK have CD3?plus

Natural killer (NK) cells do not express CD3; they are CD3-negative innate lymphocytes. Human NK cells are typically CD56+ and may express CD16, but they lack the T-cell receptor–CD3 complex used by T lymphocytes. A distinct population, invariant NKT cells, co-express T-cell markers including CD3 and NK markers, but conventional NK cells remain CD3−.

Which cells are known as natural killer cells?plus

Natural killer (NK) cells are a type of large granular lymphocyte of the innate immune system that develop in bone marrow. They kill virus-infected and cancerous cells without prior sensitization by recognizing stressed cells or missing MHC I. NK cells use perforin and granzymes to induce target-cell death and secrete cytokines like interferon-gamma to modulate immune responses.

What are CD3+ CD56+ cells?plus

CD3+ CD56+ cells are T lymphocytes that also express the NK-cell marker CD56 (often called NKT-like or NK-like T cells). They combine T-cell antigen recognition with innate-like cytotoxicity and rapid cytokine release, bridging adaptive and innate immunity. Present in blood and tissues, they participate in antiviral and antitumor responses and can be altered in infections, cancer, and autoimmune conditions.

Can I drink coffee or tea before CD3 (NATURAL KILLER CELLS)?plus

If CD3 (NATURAL KILLER CELLS) needs fasting, avoid tea and coffee (even without sugar) during the fasting window, as they can affect some results; plain water is fine. If no fasting is required, your usual drinks are okay.

Do I need a doctor's prescription to book CD3 (NATURAL KILLER CELLS)?plus

You can book CD3 (NATURAL KILLER CELLS) on GetVisit with or without a prescription, though a doctor's advice helps with interpreting the result. Cashless OPD may require a referral, depending on your insurer.

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Reports came on WhatsApp and email well within the promised time. My child had recurrent fevers and this test finally gave us a clear answer. GetVisit showed the prices upfront before I even selected a lab in Kirti Nagar. My doctor said it was one of the most clearly formatted reports he had seen. Trustworthy, professional, and convenient.

Arun Pandey

Delhi

starstarstarstarstar

In and out in fifteen minutes. Vector-borne diseases are common in Delhi during the rains. Scheduled a slot online and got an instant confirmation on WhatsApp in Vaishali. Reports came on WhatsApp and email well within the promised time. Already told my family and neighbours to use GetVisit.

Rajender Phogat

Delhi

starstarstarstarstar

The whole thing was done from my phone sitting at home in Shalimar Bagh. The prick was barely noticeable. No long queues and no confusion. The result was reassuring and we could proceed with the next steps. Saved me time and the hassle of going to a big hospital for a routine test.

Tanya Saxena

Delhi

starstarstarstarstar

Had a stubborn fever and this test pinpointed the cause quickly. GetVisit had same-day slots which is not easy to find in Delhi in GK-1. The lab staff were courteous and I was not made to wait. Digital report was convenient and I shared it directly with my specialist. Will definitely use GetVisit again.

Rehana Mahmood

Delhi

starstarstarstarstar

If you need a reliable diagnostic lab in Dwarka, GetVisit makes it easy to find and book one. High fever in the monsoon and my doctor wanted dengue and typhoid ruled out. Arrived and was attended to within ten minutes. Reference ranges were highlighted which made it easy to read. No complaints at all. Smooth experience from start to finish.

Rukhsar Ahmed

Delhi

starstarstarstarstar

The result was reassuring and we could proceed with the next steps. High fever in the monsoon and my doctor wanted dengue and typhoid ruled out. Delhi traffic is brutal so finding a nearby lab through GetVisit was a relief near my flat in Rohini Sector 7. The staff explained each step before proceeding. Great service, especially given Delhi's busy lifestyle.

Sneha Agarwal

Delhi

starstarstarstarstar

Waiting area was tidy and the staff were calm and professional. High fever in the monsoon and my doctor wanted dengue and typhoid ruled out. Booked online through GetVisit with no phone calls required in Faridabad. Received the report on my phone and forwarded it to my doctor immediately. Highly recommend to anyone in Delhi NCR looking for hassle-free diagnostics.

Santosh Punia

Delhi

starstarstarstarstar

My child had recurrent fevers and this test finally gave us a clear answer. Compared labs on GetVisit and picked the one nearest to my house in Shalimar Bagh. Quick blood test, nothing to stress about. No need to visit the lab again to collect a paper copy. Great service, especially given Delhi's busy lifestyle.

Kulwinder Singh

Delhi

starstarstarstarstar

Compared labs on GetVisit and picked the one nearest to my house in Dwarka Sector 10. Vector-borne diseases are common in Delhi during the rains. Simple blood draw, over in under two minutes. Everything was within the normal range which was a relief. Already recommended this to three people in my RWA.

Nadia Siddiqui

Delhi

starstarstarstarstar

If you need a reliable diagnostic lab in GK-1, GetVisit makes it easy to find and book one. Vector-borne diseases are common in Delhi during the rains. The phlebotomist was skilled and the draw was quick and painless. No need to visit the lab again to collect a paper copy. Will definitely use GetVisit again.

Deepa Rao

Delhi

starstarstarstarstar

Reports came on WhatsApp and email well within the promised time. My child had recurrent fevers and this test finally gave us a clear answer. GetVisit showed the prices upfront before I even selected a lab in Kirti Nagar. My doctor said it was one of the most clearly formatted reports he had seen. Trustworthy, professional, and convenient.

Arun Pandey

Delhi

starstarstarstarstar

In and out in fifteen minutes. Vector-borne diseases are common in Delhi during the rains. Scheduled a slot online and got an instant confirmation on WhatsApp in Vaishali. Reports came on WhatsApp and email well within the promised time. Already told my family and neighbours to use GetVisit.

Rajender Phogat

Delhi

starstarstarstarstar

The whole thing was done from my phone sitting at home in Shalimar Bagh. The prick was barely noticeable. No long queues and no confusion. The result was reassuring and we could proceed with the next steps. Saved me time and the hassle of going to a big hospital for a routine test.

Tanya Saxena

Delhi

starstarstarstarstar

Had a stubborn fever and this test pinpointed the cause quickly. GetVisit had same-day slots which is not easy to find in Delhi in GK-1. The lab staff were courteous and I was not made to wait. Digital report was convenient and I shared it directly with my specialist. Will definitely use GetVisit again.

Rehana Mahmood

Delhi

starstarstarstarstar

If you need a reliable diagnostic lab in Dwarka, GetVisit makes it easy to find and book one. High fever in the monsoon and my doctor wanted dengue and typhoid ruled out. Arrived and was attended to within ten minutes. Reference ranges were highlighted which made it easy to read. No complaints at all. Smooth experience from start to finish.

Rukhsar Ahmed

Delhi

starstarstarstarstar

The result was reassuring and we could proceed with the next steps. High fever in the monsoon and my doctor wanted dengue and typhoid ruled out. Delhi traffic is brutal so finding a nearby lab through GetVisit was a relief near my flat in Rohini Sector 7. The staff explained each step before proceeding. Great service, especially given Delhi's busy lifestyle.

Sneha Agarwal

Delhi

starstarstarstarstar

Waiting area was tidy and the staff were calm and professional. High fever in the monsoon and my doctor wanted dengue and typhoid ruled out. Booked online through GetVisit with no phone calls required in Faridabad. Received the report on my phone and forwarded it to my doctor immediately. Highly recommend to anyone in Delhi NCR looking for hassle-free diagnostics.

Santosh Punia

Delhi

starstarstarstarstar

My child had recurrent fevers and this test finally gave us a clear answer. Compared labs on GetVisit and picked the one nearest to my house in Shalimar Bagh. Quick blood test, nothing to stress about. No need to visit the lab again to collect a paper copy. Great service, especially given Delhi's busy lifestyle.

Kulwinder Singh

Delhi

starstarstarstarstar

Compared labs on GetVisit and picked the one nearest to my house in Dwarka Sector 10. Vector-borne diseases are common in Delhi during the rains. Simple blood draw, over in under two minutes. Everything was within the normal range which was a relief. Already recommended this to three people in my RWA.

Nadia Siddiqui

Delhi

starstarstarstarstar

If you need a reliable diagnostic lab in GK-1, GetVisit makes it easy to find and book one. Vector-borne diseases are common in Delhi during the rains. The phlebotomist was skilled and the draw was quick and painless. No need to visit the lab again to collect a paper copy. Will definitely use GetVisit again.

Deepa Rao

Delhi

starstarstarstarstar

Reports came on WhatsApp and email well within the promised time. My child had recurrent fevers and this test finally gave us a clear answer. GetVisit showed the prices upfront before I even selected a lab in Kirti Nagar. My doctor said it was one of the most clearly formatted reports he had seen. Trustworthy, professional, and convenient.

Arun Pandey

Delhi

starstarstarstarstar

In and out in fifteen minutes. Vector-borne diseases are common in Delhi during the rains. Scheduled a slot online and got an instant confirmation on WhatsApp in Vaishali. Reports came on WhatsApp and email well within the promised time. Already told my family and neighbours to use GetVisit.

Rajender Phogat

Delhi

starstarstarstarstar

The whole thing was done from my phone sitting at home in Shalimar Bagh. The prick was barely noticeable. No long queues and no confusion. The result was reassuring and we could proceed with the next steps. Saved me time and the hassle of going to a big hospital for a routine test.

Tanya Saxena

Delhi

starstarstarstarstar

Had a stubborn fever and this test pinpointed the cause quickly. GetVisit had same-day slots which is not easy to find in Delhi in GK-1. The lab staff were courteous and I was not made to wait. Digital report was convenient and I shared it directly with my specialist. Will definitely use GetVisit again.

Rehana Mahmood

Delhi

starstarstarstarstar

If you need a reliable diagnostic lab in Dwarka, GetVisit makes it easy to find and book one. High fever in the monsoon and my doctor wanted dengue and typhoid ruled out. Arrived and was attended to within ten minutes. Reference ranges were highlighted which made it easy to read. No complaints at all. Smooth experience from start to finish.

Rukhsar Ahmed

Delhi

starstarstarstarstar

The result was reassuring and we could proceed with the next steps. High fever in the monsoon and my doctor wanted dengue and typhoid ruled out. Delhi traffic is brutal so finding a nearby lab through GetVisit was a relief near my flat in Rohini Sector 7. The staff explained each step before proceeding. Great service, especially given Delhi's busy lifestyle.

Sneha Agarwal

Delhi

starstarstarstarstar

Waiting area was tidy and the staff were calm and professional. High fever in the monsoon and my doctor wanted dengue and typhoid ruled out. Booked online through GetVisit with no phone calls required in Faridabad. Received the report on my phone and forwarded it to my doctor immediately. Highly recommend to anyone in Delhi NCR looking for hassle-free diagnostics.

Santosh Punia

Delhi

starstarstarstarstar

My child had recurrent fevers and this test finally gave us a clear answer. Compared labs on GetVisit and picked the one nearest to my house in Shalimar Bagh. Quick blood test, nothing to stress about. No need to visit the lab again to collect a paper copy. Great service, especially given Delhi's busy lifestyle.

Kulwinder Singh

Delhi

starstarstarstarstar

Compared labs on GetVisit and picked the one nearest to my house in Dwarka Sector 10. Vector-borne diseases are common in Delhi during the rains. Simple blood draw, over in under two minutes. Everything was within the normal range which was a relief. Already recommended this to three people in my RWA.

Nadia Siddiqui

Delhi

starstarstarstarstar

If you need a reliable diagnostic lab in GK-1, GetVisit makes it easy to find and book one. Vector-borne diseases are common in Delhi during the rains. The phlebotomist was skilled and the draw was quick and painless. No need to visit the lab again to collect a paper copy. Will definitely use GetVisit again.

Deepa Rao

Delhi

starstarstarstarstar

Reports came on WhatsApp and email well within the promised time. My child had recurrent fevers and this test finally gave us a clear answer. GetVisit showed the prices upfront before I even selected a lab in Kirti Nagar. My doctor said it was one of the most clearly formatted reports he had seen. Trustworthy, professional, and convenient.

Arun Pandey

Delhi

starstarstarstarstar

In and out in fifteen minutes. Vector-borne diseases are common in Delhi during the rains. Scheduled a slot online and got an instant confirmation on WhatsApp in Vaishali. Reports came on WhatsApp and email well within the promised time. Already told my family and neighbours to use GetVisit.

Rajender Phogat

Delhi

starstarstarstarstar

The whole thing was done from my phone sitting at home in Shalimar Bagh. The prick was barely noticeable. No long queues and no confusion. The result was reassuring and we could proceed with the next steps. Saved me time and the hassle of going to a big hospital for a routine test.

Tanya Saxena

Delhi

starstarstarstarstar

Had a stubborn fever and this test pinpointed the cause quickly. GetVisit had same-day slots which is not easy to find in Delhi in GK-1. The lab staff were courteous and I was not made to wait. Digital report was convenient and I shared it directly with my specialist. Will definitely use GetVisit again.

Rehana Mahmood

Delhi

starstarstarstarstar

If you need a reliable diagnostic lab in Dwarka, GetVisit makes it easy to find and book one. High fever in the monsoon and my doctor wanted dengue and typhoid ruled out. Arrived and was attended to within ten minutes. Reference ranges were highlighted which made it easy to read. No complaints at all. Smooth experience from start to finish.

Rukhsar Ahmed

Delhi

starstarstarstarstar

The result was reassuring and we could proceed with the next steps. High fever in the monsoon and my doctor wanted dengue and typhoid ruled out. Delhi traffic is brutal so finding a nearby lab through GetVisit was a relief near my flat in Rohini Sector 7. The staff explained each step before proceeding. Great service, especially given Delhi's busy lifestyle.

Sneha Agarwal

Delhi

starstarstarstarstar

Waiting area was tidy and the staff were calm and professional. High fever in the monsoon and my doctor wanted dengue and typhoid ruled out. Booked online through GetVisit with no phone calls required in Faridabad. Received the report on my phone and forwarded it to my doctor immediately. Highly recommend to anyone in Delhi NCR looking for hassle-free diagnostics.

Santosh Punia

Delhi

starstarstarstarstar

My child had recurrent fevers and this test finally gave us a clear answer. Compared labs on GetVisit and picked the one nearest to my house in Shalimar Bagh. Quick blood test, nothing to stress about. No need to visit the lab again to collect a paper copy. Great service, especially given Delhi's busy lifestyle.

Kulwinder Singh

Delhi

starstarstarstarstar

Compared labs on GetVisit and picked the one nearest to my house in Dwarka Sector 10. Vector-borne diseases are common in Delhi during the rains. Simple blood draw, over in under two minutes. Everything was within the normal range which was a relief. Already recommended this to three people in my RWA.

Nadia Siddiqui

Delhi

starstarstarstarstar

If you need a reliable diagnostic lab in GK-1, GetVisit makes it easy to find and book one. Vector-borne diseases are common in Delhi during the rains. The phlebotomist was skilled and the draw was quick and painless. No need to visit the lab again to collect a paper copy. Will definitely use GetVisit again.

Deepa Rao

Delhi