Description
Why It’s Done:
• To evaluate selenium deficiency, which may cause symptoms such as fatigue, weakness, and impaired immune function
• To assess selenium toxicity, which can occur if high doses of selenium supplements are taken over time
• To monitor nutritional status in individuals with malabsorption conditions, gastrointestinal disorders, or those receiving parenteral nutrition
• To investigate certain health conditions like thyroid dysfunction, cardiomyopathy, or immune system problems
• To track selenium levels in individuals who have undergone specific treatments, like chemotherapy
Preparation:
• No special preparation is usually required for this test.
• Inform your doctor if you are taking selenium supplements or other vitamins/minerals, as they may affect test results.
• Avoid taking high doses of selenium supplements for at least a few days before the test unless otherwise instructed by your healthcare provider.


