The best way to test for a parasite is to get a stool test. At Health Renewal we do a comprehensive stool test for this purpose.
Conventional Ova and Parasite Stool Test
Most doctors will only perform conventional stool tests which can identify parasites or parasite eggs in your stool, yet this test comes with many limitations. The problem with this test is that it is only conditionally successful. This test requires three separate stool samples that must be sent to the lab for a pathologist to view under a microscope. Parasites have a unique life cycle that allows them to rotate between dormant and alive. In order to identify them in this conventional test, the stool sample must contain a live parasite, the parasite must remain alive as the sample ships to the lab, and the pathologist must be able to see the live parasite swimming across the slide. While these can certainly be useful tests for some people, they are unable to identify dormant parasites, and therefore I often see a high number of false negatives with this type of stool test.
Functional Medicine Comprehensive Stool Test
At Health Renewal, our Integrative doctors use a comprehensive stool test on our patients. The comprehensive test is much more sensitive than the conventional stool test because it uses Polymerase Chain Reaction (PCR) technology to amplify the DNA of the parasite if there is one. This means that the parasite can actually be dead or in its dormant phase and it will be detected on this test. Because this test utilises PCR technology, it isn't reliant on a pathologist seeing a live parasite swimming on the slide. We frequently diagnose parasites in our patients that were missed on conventional stool tests.