Final answer:
Positive microscopy for motile protozoa in the absence of clue cells suggests a trichomoniasis infection, likely presenting with symptoms such as itching, odor, and discomfort. Diagnostic confirmation is possible with more sensitive tests such as NAAT, and treatment involves metronidazole or tinidazole.
Step-by-step explanation:
If a patient's microscopy test after a pelvic exam is negative for clue cells but positive for motile protozoa, the symptoms and signs you would expect are most consistent with a protozoan infection such as trichomoniasis. This sexually transmitted infection (STI) is caused by the protozoan Trichomonas vaginalis and can present with symptoms such as vaginal discharge that is often green or yellow and frothy, itching or irritation inside the organ, discomfort during urination or sexual intercourse, and a fishy odor.
Diagnostic tests beyond wet mounts, like the Nucleic acid amplification testing (NAAT), the OSOM Trichomonas Rapid Test, or the Affirm VPII Microbial Identification Test could be used to confirm the diagnosis given their higher sensitivity. Treatment typically involves the administration of metronidazole or tinidazole, and it is advised to treat sexual partners as well.