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Difficulty: MediumGynecologic Infections

A 25-year-old woman presents to the ambulatory care clinic with complaints of increased, yellowish vaginal discharge for the past week. She denies any pelvic pain, fever, nausea, or burning with urination. The patient is sexually active with a new male partner and reports inconsistent use of barrier contraception. Her medical history is unremarkable, and she takes only a daily oral contraceptive pill. Vital signs show a temperature of 37.1°C (98.8°F), blood pressure of 118/76 mmHg, and a heart rate of 78/min. On pelvic examination, the vagina appears normal, but the cervix is erythematous, edematous, and bleeds easily upon speculum contact. A sample of mucopurulent discharge is visible at the cervical os. Bimanual examination demonstrates a normal-sized, non-tender uterus and no adnexal masses or cervical motion tenderness. A rapid nucleic acid amplification test (NAAT) performed in the clinic on a cervical swab returns positive for *Neisseria gonorrhoeae* and negative for *Chlamydia trachomatis*.

Which of the following is the most appropriate pharmacotherapy for this patient?

  1. A
    Ceftriaxone and azithromycin
  2. B
    Ceftriaxone and doxycycline
  3. CeftriaxoneAnswer
  4. D
    Gentamicin and azithromycin
  5. E
    Doxycycline

Answer

Ceftriaxone
The patient is presenting with uncomplicated gonococcal cervicitis. Current treatment guidelines recommend treating isolated gonococcal infections with high-dose intramuscular ceftriaxone monotherapy. Historically, empiric dual therapy with azithromycin was standard to treat potential chlamydial coinfection and theoretically slow gonococcal resistance. However, due to rising macrolide resistance, azithromycin is no longer recommended in this context. Furthermore, because this patient's rapid NAAT definitively ruled out Chlamydia trachomatis, the addition of doxycycline is unnecessary. Thus, ceftriaxone alone is the most appropriate targeted therapy.

Step-by-Step Solution

1
Interpret the clinical presentation and rapid laboratory findings.
The patient has uncomplicated gonococcal cervicitis (NAAT positive for N. gonorrhoeae, negative for C. trachomatis).
Establishing a definitive microbiological diagnosis is required to select targeted therapy rather than broad empiric therapy.
2
Determine the guideline-concordant targeted antimicrobial therapy.
High-dose intramuscular ceftriaxone monotherapy is indicated.
Updated guidelines dictate that if chlamydia has been definitively ruled out, dual antibiotic therapy should be avoided to promote antimicrobial stewardship and limit macrolide resistance.

Key Concept

Targeted treatment of uncomplicated gonococcal cervicitis with ceftriaxone monotherapy when chlamydial coinfection is ruled out.
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Topics

Gynecologic Infections

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