Need more info...
Without your general and specific clinical profiles + physical exam + reviewing/comparing available tests, it is hard to answer your Q.
In fact, please ask the doctors ordering the test directly since s/he should know more about you than anyone online. How to handle sickness? Go to articles listed in http://www.formefirst.com/onDealSickness.html & http://www.formefirst.com/onLifeBasics.html.