Selenium is an essential element and a component of antioxidant systems. Industrial exposure can occur in the manufacture of glass, pigments, paint, dyes, electronic equipment, fungicides, rubber and semiconductors. Toxicity results in skin, hair and nail changes, neurological features, gastro-intestial symptoms and a garlic-like breath odour.
No selenium containing supplements for 24 hours prior to testing.
Navy Blue (EDTA)