I used that lab. I had the comprehensive stool analysis and parasite id and thin blood smear done.I put an Ascaris that crawled out of me alive in the id vial with some other worms. parasite id test came back as mucous and scabs and fibers. Stool came back negative for parasites candida dividing.Blood smear showed nothing. I felt it was a waste of almost $500. If you have taken any meds to treat these nothing will show in testing.