No special preparation is needed for Selenium. Inform your doctor if you are on any medications or have any underlying medical conditions or allergies before undergoing Selenium. Your doctor depending on your condition will give specific instructions.
Average price range of the test is between Rs.500 to Rs.5000 depending on the factors of city, quality and availablity.
The normal result for Selenium for Selenium is 70 - 150ng/ml for Unisex gender and for All age groups.