This test measures the number and functional activity of Natural Killer (NK) cells in the blood, which are an essential part of the body’s innate immune system. NK cells help control infections, cancer cell growth, and immune regulation. It is commonly used in the evaluation of immune deficiencies, recurrent infections, autoimmune disorders, and infertility issues. The test is performed using flow cytometry on EDTA blood. Results help clinicians assess immune status and guide treatment decisions
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Sample Type: EDTA Blood
Fasting Not Required
Notes: N0003
Frequently Asked Questions (FAQ's):
What are Natural Killer (NK) cells?
NK cells are a type of white blood cell that plays a critical role in defending the body against viral infections and tumor cells.
Why is this test recommended?
It is suggested for individuals with recurrent infections, suspected immune deficiency, autoimmune diseases, cancer monitoring, or reproductive problems such as recurrent pregnancy loss.
What sample is required?
EDTA whole blood is needed for this test.
Is fasting required?
No fasting is required for NK cell testing.
How long does it take to receive results?
Results are generally available within 3–5 working days, depending on lab workflow