NK Cells (CD3/CD16/CD56) LIS Code: NK CD3/16/56
Assess natural killer cell markers with a private NK cells blood test and accurate immune profiling.
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About this test
NK Cells Blood Test (CD3/CD16/CD56) – Immune System & Fertility Assessment
The NK Cells Blood Test (CD3/CD16/CD56) is a specialised immunology blood test used to measure Natural Killer (NK) cells, a key part of the immune system. This private NK cell test helps assess immune function and is commonly used in fertility investigations, recurrent miscarriage cases, and immune-related conditions.
At Vitalync Diagnosis, we offer advanced immune testing near you, with fast results and clinically reliable analysis.
What Are NK Cells?
Natural Killer (NK) cells are a type of white blood cell that play an essential role in the body’s immune defence by:
Targeting and destroying infected or abnormal cells
Regulating immune responses
Supporting early defence against viruses and tumours
This test measures NK cells using markers such as CD3, CD16, and CD56, providing insight into immune activity and balance.
What Does the NK Cells Test Measure?
This immune function blood test evaluates:
CD3 – T-cell marker (used to differentiate NK cells from T lymphocytes)
CD16 & CD56 – Surface markers used to identify and quantify NK cells
NK Cell Levels & Distribution – Helps determine immune system activity
Abnormal NK cell levels or activity may be linked to immune dysfunction or reproductive challenges.
Why This Test Is Important
The NK cells blood test is particularly valuable in:
Recurrent miscarriage investigations
Fertility assessments (implantation failure)
Autoimmune condition screening
Chronic inflammation or immune imbalance
Understanding NK cell levels can help guide treatment plans, fertility support, and further specialist investigations.
When Is NK Cell Testing Recommended?
You may consider this private NK cell test near you if you have:
Recurrent pregnancy loss or IVF implantation failure
Unexplained infertility
Suspected immune system dysfunction
Autoimmune conditions
Ongoing inflammation or chronic illness symptoms
How the NK Cells Blood Test Works
A simple blood sample is collected at one of our private clinics near you
The sample is analysed using advanced laboratory techniques
NK cell markers (CD3/CD16/CD56) are measured and interpreted
Results are provided with clear clinical insights
Accurate & Trusted Laboratory Testing
All samples are processed by UKAS-accredited laboratories, ensuring high levels of accuracy, reliability, and clinical quality. Results can support both patients and healthcare professionals in making informed decisions.
