Rachel, you may want to double check his chart. Demodex is diagnosed with a skin scraping. The mites live in the hair follicles, not the digestive tract.
Once Demodectic mange is suspected, it can usually be confirmed by a skin scraping or biopsy, in which case, the mites can be seen with the aid of a microscope. T
Demodectic Mange (Red, Puppy, and Follicular Mange) in Dogs How is Demodicosis Diagnosed?
The microscopic Demodex mite lives deep in hair follicles. Diagnosis is suggested by the skin lesions and confirmed with a skin scrape and microscopic examination of Demodex mites.
The vet will gently squeeze an area of the skin and rub a scalpel blade over the ridge of skin to collect mites to look at under the microscope. Canine Demodex Mite Mange (Demodicosis or Red Mange) - Treatment Options for Canine Demodex Mite Mange (Demodicosis or Red Mange) How is Demodectic Mange in Dogs Diagnosed?
Demodectic mange in dogs is diagnosed by gently scraping the skin with a sharp instrument such as a scalpel blade and examining the collected skin samples under a microscope. Microscopic analysis will reveal the Demodex dog mite which has been extruded from the hair follicle and collected with the scraping. Demodectic Mange in Dogs: A Common Form of Mange Caused by the Demodex Dog Mite