What laboratory test is used for diagnosing trichomoniasis?

The diagnosis of trichomoniasis is primarily made through the observation of wet prep findings. This laboratory test involves obtaining a sample of vaginal or urethral discharge and examining it under a microscope. In cases of trichomoniasis, motile trichomonads, which are a type of protozoan, can typically be identified in the fluid. The presence of these organisms is a strong indicator of the infection.

While other tests may assess different conditions or infections, they are not specific for diagnosing trichomoniasis. For example, bacterial cultures are better suited for identifying bacterial infections, and Gram stains are used primarily to evaluate bacterial presence and type rather than protozoal infections. Blood tests do not directly test for trichomoniasis and are not employed in this context. Thus, wet prep findings remain the most effective and direct method for diagnosing trichomoniasis.