Bacterial Infections USMLE Step 1 Practice Question
A 27-year-old man presents to the clinic with dysuria and urethral discharge for 3 days. He reports new sexual contact 10 days ago with a partner whose STI status is unknown. He denies fever, abdominal pain, and urinary frequency. Temperature is 37.0°C, and vital signs are otherwise normal. Urinalysis demonstrates 15–20 WBC/hpf, negative nitrites, negative leukocyte esterase, and no bacteria on Gram stain. Wet mount of urethral discharge is unremarkable. Which of the following organisms is most likely responsible for this patient's nongonococcal urethritis?
Answer choices
- AChlamydia trachomatisCorrect answer
- BNeisseria gonorrhoeae
- CUreaplasma urealyticum
- DEscherichia coli
- EStaphylococcus saprophyticus
- FMycoplasma genitalium
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