I just found this during my search online. http://www.accesalabs.com/toxin?gclid=C ... hwod5gIuWQ
It has a price and the type of lab test one would want to do. This at least gives us an approximate idea about the cost associated with such tests.
And I really don't know why they have 3 different types of candida tests , IgA, IgM and IgG.