Trichomonas vaginalis

Summary of Trichomonas vaginalis
Trichomonas vaginalis is an anaerobic, flagellated protozoan parasite and the causative agent of trichomoniasis. It is the most common pathogenic protozoan infection of humans in industrialized countries. Infection rates between men and women are similar with women being symptomatic, while infections in men are usually asymptomatic. Transmission usually occurs via direct, skin-to-skin contact with an infected individual, most often through vaginal intercourse. Usually treatment consists of metronidazole and tinidazole. Patients present with a foul-smelling, greenish  discharge; itching and burning; and "strawberry cervix"; vaginal pH will be >4.5.

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Trichomonas vaginalis

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Trichomonas vaginalis

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Trichomonas vaginalis is transmitted through , as it cannot exist outside the body.

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USMLE® Step 1 style questions USMLE

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A 22-year-old nulligravida woman presents to the walk-in clinic with abnormal vaginal odor. The vaginal odor started two weeks ago and has not improved. She has also noticed vaginal discharge, but denies vaginal bleeding, nausea, vomiting, fever, chills, and abdominal pain. She explains her menstrual period comes every 28 days and the flow is regular. The patient notes she is sexually active with two men and has not been using condoms regularly. Examination shows that her temperature is 37℃ (98.6℉), blood pressure is 125/85 mm Hg, pulse is 85/min, and respirations are 15/min. Pelvic examination reveals thin and frothy vaginal discharge and a normal-appearing cervix. Which of the following is the most appropriate next step in management? 

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