A 32-year-old woman with a history of intrauterine device (copper IUD) insertion 18 months ago presents with a 2-week history of lower abdominal pain, irregular vaginal bleeding, and mucopurulent cervical discharge. She is afebrile (37.1°C) and has mild adnexal tenderness on examination but no rebound tenderness or guarding. Pregnancy test is negative. Nucleic acid amplification testing (NAAT) for Chlamydia trachomatis and Neisseria gonorrhoeae is pending. Which of the following is the most appropriate management at this time?

## Clinical Assessment and Management Principles **Key Point:** This patient has mild-to-moderate PID (afebrile, no peritoneal signs) and is a candidate for outpatient oral antibiotic therapy. IUD management in PID is nuanced and depends on clinical response and organism identification. ### Diagnostic Criteria for PID (This Patient) | Criterion | Present | Status | |-----------|---------|--------| | Pelvic pain | Yes (2 weeks) | ✓ | | Fever ≥38.3°C | No (37.1°C) | ✗ | | Cervical motion/adnexal tenderness | Yes (mild adnexal) | ✓ | | Mucopurulent cervical discharge | Yes | ✓ | | Peritoneal signs (rebound, guarding) | No | ✗ | **Diagnosis:** Mild-to-moderate PID, suitable for outpatient management. ### IUD and PID: Evidence-Based Approach ```mermaid flowchart TD A[PID diagnosed in IUD user]:::outcome --> B{Clinical severity?}:::decision B -->|Severe: fever, peritonitis| C[Remove IUD, admit for IV antibiotics]:::urgent B -->|Mild-moderate: afebrile, no peritonitis| D[Start empiric oral antibiotics]:::action D --> E[Obtain NAAT results]:::action E --> F{Organism identified?}:::decision F -->|Gonorrhea/Chlamydia| G[Continue antibiotics, IUD removal optional]:::action F -->|No pathogen or atypical| H[Consider IUD removal]:::action G --> I[Clinical response at 48-72 hrs?]:::decision I -->|Improved| J[Continue oral antibiotics, keep IUD]:::action I -->|No improvement| K[Remove IUD, escalate to IV antibiotics]:::urgent ``` ### Why Empiric Antibiotics NOW (Not Awaiting NAAT) **High-Yield:** NAAT results take 24–48 hours. Delaying antibiotics in symptomatic PID increases risk of tubo-ovarian abscess, infertility, and ectopic pregnancy. Empiric therapy is standard of care [cite:ACOG PID Guidelines 2021]. ### IUD Removal: When and Why **Clinical Pearl:** The IUD is NOT automatically removed in PID. Current evidence suggests: 1. **IUD retention is safe** if: - Patient is responding to antibiotics (fever resolves, pain improves within 48–72 hours) - Organism is susceptible (gonorrhea/chlamydia confirmed on NAAT) - No tubo-ovarian abscess or severe peritonitis 2. **IUD removal is indicated** if: - No clinical improvement after 48–72 hours of antibiotics - Tubo-ovarian abscess develops - Organism is atypical or resistant - Patient preference for removal **Key Point:** Removing the IUD immediately without giving antibiotics time to work is unnecessary and deprives the patient of effective contraception if she responds well. ### Recommended Outpatient Antibiotic Regimen **First-line (for mild-moderate PID):** - **Ceftriaxone** 250 mg IM once PLUS **Doxycycline** 100 mg PO twice daily × 14 days ± **Metronidazole** 500 mg PO twice daily × 14 days OR - **Cefixime** 400 mg PO once PLUS **Doxycycline** 100 mg PO twice daily × 14 days ± **Metronidazole** 500 mg PO twice daily × 14 days **Alternative (if beta-lactam allergy):** - **Moxifloxacin** 400 mg PO once daily × 14 days (covers gram-negatives, anaerobes, and atypicals) **Warning:** Fluoroquinolones alone are no longer recommended as first-line due to rising gonococcal resistance. ### Follow-up and Decision Points **At 48–72 hours:** - Reassess clinically (fever resolution, pain improvement) - Await NAAT results - If improved AND NAAT positive for gonorrhea/chlamydia → continue antibiotics, keep IUD - If no improvement → remove IUD, escalate to IV therapy **At 14 days:** - Confirm symptom resolution - Counsel on STI prevention and partner notification