Selenium

The Selenium Serum test measures the concentration of selenium, an essential trace mineral, in the blood. Selenium plays a vital role in antioxidant defense and immune function.

Individuals with symptoms of selenium deficiency, those on long-term parenteral nutrition, or people with thyroid disorders should consider this test.

A blood sample is collected and analyzed using atomic absorption spectrophotometry or ICP-MS to determine selenium levels.

Low selenium levels indicate a deficiency that may lead to oxidative stress, while high levels may indicate toxicity.

Selenium supplementation or dietary adjustments may be recommended for deficiencies, while high levels may require reducing exposure to selenium-rich sources.