It is best if the dog is at the vet who gets the stool sample right from the rectum of the dog. 이렇게 하면 샘플이 신선하고 지아르디아를 더 쉽게 확인할 수 있습니다. Both Coccidia and Giardia need to be diagnosed by a Vet and the medication needs to be dispensed by a Vet.