Description
The Selenium Blood Test measures the level of selenium, an essential trace mineral, in your bloodstream. Selenium plays a critical role in antioxidant defense, thyroid hormone metabolism, and immune system function.
This test is useful for identifying selenium deficiency or toxicity, supporting overall health, and guiding nutritional or therapeutic interventions.
Purpose of the Test
- Evaluate selenium nutritional status
- Detect deficiency or excess of selenium
- Support assessment of thyroid function
- Monitor antioxidant and immune system health
- Aid in management of chronic diseases associated with selenium imbalance
Who Should Consider This Test?
- Individuals with thyroid disorders or autoimmune thyroid disease
- Patients with symptoms of selenium deficiency (fatigue, muscle weakness, or weakened immunity)
- People with high dietary supplementation or risk of selenium toxicity
- Individuals with chronic illnesses or conditions affecting nutrient absorption
- Those undergoing nutritional assessment for wellness or preventive care
What the Test Measures
- Selenium Concentration in Blood:
- Reflects the body’s selenium status, which is essential for antioxidant enzyme function, thyroid hormone metabolism, and immune system support.
Low selenium levels may increase the risk of oxidative stress, thyroid dysfunction, or immune deficiencies.
High selenium levels may indicate toxicity, which can cause gastrointestinal, neurological, or dermatological symptoms.
Fasting Required?
No fasting required.
