Final answer:
Pregnant individuals should be tested for Toxoplasma gondii, the protozoan that causes toxoplasmosis, due to the risk of birth defects. Diagnostic methods for detection include stool exams and immunoassays, while treatment involves specific medications.
Step-by-step explanation:
If a patient's owner is pregnant, and there is concern over a potential protozoan parasite infection, the patient should be tested for Toxoplasma gondii. This protozoan parasite causes toxoplasmosis, which can be particularly dangerous during pregnancy as it can lead to serious birth defects. Testing can be done through various diagnostic methods like a stool ova and parasite exam, ELISA, or immunofluorescence antibody tests to ensure accurate detection. Treatment typically involves the use of medications such as metronidazole or tinidazole, although resistance can develop if the infection becomes chronic.