Ordering the Natural Killer Cells Functional Test
Ordering the Natural Killer Cells Functional Test helps assess your immune system’s ability to combat infections and diseases. Interestingly, this test can also reveal how your body responds to stress, which can impact immune function. When you order this test, you gain access to specific information about your immune system.
- Evaluates the activity of natural killer cells in your blood.
- Helps identify potential immune deficiencies.
- Assists in monitoring immune response to treatments.
- Provides data for personalized health strategies.
- Supports early detection of immune-related issues.
Who Might Benefit from This Test
People experiencing frequent infections or unexplained fatigue might find this test beneficial. For example, someone who often catches colds or feels unusually tired may want to explore their immune function further. Ordering this test can help uncover underlying immune issues.
- Experiencing recurrent viral infections.
- Feeling persistently fatigued without a clear cause.
- Undergoing treatment that affects the immune system.
- Having a family history of immune disorders.
- Curious about how stress impacts immune function.
Testing can reveal specific immune deficiencies, allowing for targeted interventions. Delaying the test might mean missing early signs of immune dysfunction, which could lead to more complex issues later.
Preparing for Your Test
No fasting is required before taking the Natural Killer Cells Functional Test. It’s important to follow any instructions from your healthcare provider to ensure the test results are as informative as possible.
Labs Included When Ordering Your Natural Killer Cells Functional Test
| Test Name | Reference Ranges | Significance | Low and High Levels of Natural Killer Cells Functional Test |
|---|---|---|---|
| Absolute Lymphocytes | 850-3900 cells/uL | Lymphocytes are a type of white blood cell essential for immune responses, helping to fight infections and regulate immune function. | High levels may indicate an immune response to infection or chronic inflammation. Low levels may suggest weakened immune function or a hematologic disorder. |
| Natural Killer Cells CD3-CD16+CD56+ | 70-760 cells/uL | This measures the absolute count of NK cells, which play a crucial role in detecting and destroying infected or abnormal cells. | High levels may suggest an overactive immune response or immune dysregulation. Low levels may indicate immunodeficiency or chronic viral infections. |
| CD3-/CD16+CD56+ (%) | 4-25% | This percentage represents NK cells relative to total lymphocytes, providing insight into immune system balance. | High percentages may indicate immune activation. Low percentages may suggest immune suppression. |
Ranges are for adults >18 years old. Reference ranges may differ for different ages. Visit the Quest Diagnostics lab test directory for all of the ranges.
Natural Killer Cells Functional Test FAQ
Is there Natural Killer Cells Functional testing near me?
To find a nearby location for the Natural Killer Cells Functional Test, use the patient service center locator. This tool also offers mobile phlebotomy options, making it easier for those with limited mobility or tight schedules to access testing.
What is the cost of the test?
The total cost of the Natural Killer Cells Functional Test is displayed above and already includes all collection fees at patient service centers. There are no hidden charges, so you’ll only pay the price you see. It’s worth ordering the test to gain insights into your immune function, especially if you’re experiencing frequent infections.
How often should I retest?
Retesting every 6-12 months is recommended to monitor changes in immune function, especially if you have ongoing health concerns. Regular testing helps track immune response and adjust health strategies as needed.
How accurate is the test?
The Natural Killer Cells Functional Test uses flow cytometry to measure the activity of natural killer cells, providing precise results. TrueHealthLabs.com works with CLIA-certified labs to maintain high-quality testing standards you can trust.
Medical Review Board
Reviewed by Jeff Donohue M.D. from Body Logic and Brady Hurst DC, CCCN. Written by True Health Lab’s team of editorial health contributors.
Disclaimer: This information is for educational purposes only and not intended as medical advice. Consult your healthcare provider for personalized guidance.
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