Chlamydia — USMLE Step 2 CK MCQ

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EasyInfectious DiseasesChlamydiaUSMLE Step 2 CK

A 22-year-old nonpregnant patient has uncomplicated chlamydial cervicitis. Which regimen is preferred?

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Correct answer: B — Doxycycline 100 mg orally twice daily for 7 days

CDC recommends doxycycline 100 mg twice daily for 7 days as first-line for uncomplicated chlamydial infection in nonpregnant adults. Azithromycin is an alternative in pregnancy; amoxicillin is reserved for pregnancy; erythromycin is not preferred due to GI side effects.

Reference: CDC Guideline (2021): Sexually Transmitted Infections Treatment Guidelines