After The Test & Treatment Options
After the Test
Once your specimen is submitted, results are typically processed and available within a few business days. However, processing times may vary. When ready, your results will be delivered in a clear, easy-to-understand report. If any results suggest a potential infection, you’ll receive a call from an independent healthcare coordinator. Independent physicians are also available to answer any questions or discuss your results in detail.
Treatment Options
As part of your purchase, you have the opportunity to consult with an independent physician. If appropriate, they may be able to prescribe treatment based on your test results.
Age: 18+
Must be 18+ to order blood tests.
Collection Method
In person at a location
Test Details & What It Measures
A serum selenium test measures the amount of selenium in your blood—a trace mineral that plays a vital role in thyroid function, immune health, and antioxidant defense. Selenium helps protect cells from damage and supports enzymes that regulate metabolism. This test is often ordered if there’s concern about selenium deficiency or toxicity, which can occur due to poor diet, certain gastrointestinal disorders, or excessive supplementation.
Normal serum selenium levels typically range from 70 to 150 µg/L, depending on the lab and population. Low levels may be linked to weakened immunity, thyroid dysfunction, or heart muscle problems, while high levels can lead to symptoms like hair loss, brittle nails, and gastrointestinal upset. The test helps your provider determine whether supplementation is needed or if current levels are affecting your health.
Citations
Rayman, M. P. (2012). Selenium and human health. The Lancet, 379(9822), 1256–1268. https://doi.org/10.1016/S0140-6736(11)61452-9
