Final answer:
Parasitic infections, like those caused by Capillaria aerophila, are diagnosed by microscopic examination of fecal or tracheal samples for eggs. Multiple stool samples may be required for a reliable diagnosis. Treatment typically involves antiparasitic medications such as praziquantel or albendazole.
Step-by-step explanation:
The presence of eggs of certain parasites in a fecal sample or a tracheal wash sample generally points to a parasitic infection. These infections are diagnosed by examining the feces under a microscope for the presence of eggs, which can be a sign of intestinal worms or other parasitic organisms. Infections like those by Capillaria aerophila can be identified this way. Advanced imaging techniques such as X-rays, ultrasounds, and MRIs may also be used to detect the presence of adult worms or associated complications caused by the parasitic infection.
For a thorough diagnosis, it may be important to gather stool samples over multiple days to increase the chances of detecting the eggs, which can be present in variable numbers. Treatment options typically include antiparasitic medications, such as praziquantel or albendazole, depending on the type of parasite involved.