IF your going to get tested do it right and go with genova diagnostics or Dr data complete fecal tests. They are much more comprehensive and accurate than the testing done in most clinics but it is around $400.
These tests take into account qty and will let you know whats found and if the levels are high/low. About all the test is good for however is helping you target treatment since different parasites respond differently to different treatments.
If your not really having any symptoms that would make you think parasites are an issue then I would probably just sepnd the money on general health supplements and good clean food.