A pregnant client at 28 weeks gestation presents to the prenatal clinic for a routine visit. During the assessment, the nurse notes several concerning findings that may indicate a sexually transmitted infection. Which assessment finding would be most indicative of a chlamydial infection?
1Painful vesicular lesions on the external genitalia
2Thick, white, cottage cheese-like vaginal discharge with intense itching
3Frothy, yellow-green vaginal discharge with a strong fishy odor
4Mucopurulent cervical discharge with possible urethral discharge✓ 정답
해설
Mucopurulent cervical discharge is the most characteristic finding for chlamydia. Other options describe herpes (vesicular lesions), candidiasis (white discharge), or trichomoniasis (frothy discharge).
Core Nursing ExplanationKey Concept Analysis: This question tests your ability to differentiate the clinical manifestations of common sexually transmitted infections (STIs), specifically in a pregnant client. The core theme is linking specific signs and symptoms to the correct causative organism. Chlamydia trachomatis is a bacterial infection and is often asymptomatic, but when symptoms are present, they have distinct characteristics. Recognizing these is crucial for timely diagnosis and treatment to prevent complications like preterm birth, low birth weight, and neonatal conjunctivitis or pneumonia.
Answer Rationale: Key Point! The correct answer is Mucopurulent cervical discharge with possible urethral discharge. "Mucopurulent" means the discharge contains both mucus and pus, giving it a yellow or cloudy appearance. This is the hallmark sign of cervical infection caused by Chlamydia. The cervix may also appear friable (bleeds easily on contact). Urethral discharge or dysuria (painful urination) can also occur. This presentation directly contrasts with the descriptions of other common vaginal infections.
Distractor Analysis:
Watch out for confusion! Option ①, "Painful vesicular lesions on the external genitalia," describes the classic presentation of Genital Herpes (caused by HSV-2). These are fluid-filled blisters that rupture to form painful ulcers. This is a viral, not bacterial, STI.
Option ②, "Thick, white, cottage cheese-like vaginal discharge with intense itching," is the textbook description of Vulvovaginal Candidiasis (yeast infection). It is often caused by an overgrowth of Candida albicans and is not typically classified as an STI, though it can be sexually associated.
Option ③, "Frothy, yellow-green vaginal discharge with a strong fishy odor," is characteristic of Trichomoniasis, caused by the protozoan Trichomonas vaginalis. The odor and frothy consistency are key differentiating features.
Related Concepts: In prenatal care, universal screening for Chlamydia and Gonorrhea is recommended at the first prenatal visit for all pregnant women. For those at high risk, repeat screening in the third trimester is advised. Treatment during pregnancy is with antibiotics safe for fetal development, such as Azithromycin or Amoxicillin. Untreated chlamydia can lead to serious pregnancy and neonatal outcomes.
Concept Summary
Infection
Causative Agent
Key Clinical Finding
Pregnancy Implication
Chlamydia
Bacteria (C. trachomatis)
Mucopurulent cervical discharge, often asymptomatic
Thin, gray-white discharge with strong "fishy" odor (especially after intercourse)
Preterm birth, PROM
Candidiasis
Fungus (Candida sp.)
Thick, white, "cottage cheese" discharge with pruritus
No major fetal risk, but causes maternal discomfort
Side-by-Side Comparison!
Symptom/Discharge
Indicative Infection
Memory Cue
Mucopurulent (cloudy, yellow)
Chlamydia / Gonorrhea
"Mucus + Pus = Bacterial STI"
Frothy, yellow-green, foul odor
Trichomoniasis
"Frothy like a bad latte"
Thick, white, curd-like
Candidiasis (Yeast)
"Cottage cheese"
Thin, gray, fishy odor (no inflammation)
Bacterial Vaginosis (BV)
"Fish market smell" (amine odor)
Painful vesicles/ulcers
Genital Herpes
"Blisters that hurt"
Anatomy, Physiology & Pharmacology Points
• Pathophysiology: Chlamydia infects columnar epithelial cells of the endocervix and urethra, causing an inflammatory response that leads to the production of mucopurulent discharge.
• Pharmacology: First-line treatment in pregnancy is a single 1g oral dose of Azithromycin. Alternative is Amoxicillin 500 mg three times daily for 7 days. Key Point!Doxycycline and fluoroquinolones are contraindicated in pregnancy.
• Neonatal Transmission: The baby can acquire infection during passage through the birth canal, leading to Ophthalmia neonatorum (conjunctivitis) or pneumonia.
Memory Tips
• CCF for Chlamydia: Cervical discharge, Cloudy/Friable cervix.
• Discharge Mnemonic: "Chlamydia is Mucky" (Mucopurulent), "Trich is Frothy," "Yeast is White."
• Remember: Chlamydia is the "silent" infection. The patient may have NO symptoms, which is why screening is so important.
High-Frequency NCLEX Topics
NCLEX loves to test differentiation of vaginal discharges and priority interventions for STIs in pregnancy. You must know the classic presentation of each, the recommended treatments, and the potential complications for both mother and fetus. Questions often combine assessment findings with medication administration or patient teaching.
Watch Out for Question Variations!
• Instead of asking for the symptom, they might ask: "The nurse identifies mucopurulent cervical discharge in a pregnant client. Which medication should the nurse anticipate administering?" (Answer: Azithromycin).
• Or: "A newborn develops conjunctivitis 5-12 days after birth. Which maternal infection should the nurse suspect?" (Answer: Chlamydia).
• They could also present a case and ask for the priority nursing action (e.g., collect a specimen for testing, provide non-judgmental counseling, ensure partner treatment).
Nursing Clinical Practice GuideClinical Scenario: You are a nurse in a prenatal clinic. Maria, a 28-year-old G2P1 at 28 weeks gestation, comes for a routine visit. While taking her history, she mentions occasional mild pelvic discomfort and increased vaginal discharge but thought it was normal in pregnancy. During the speculum exam, you observe the cervix, which appears inflamed and has a yellowish, cloudy discharge.
Nursing Intervention Strategy:
1AssessmentPerform a non-judgmental, confidential health interview. Ask about symptoms (discharge, dysuria, pelvic pain), sexual history, and partner symptoms. Visually inspect the perineum and document discharge characteristics (color, consistency, odor).
2Diagnostic Follow-upThe standard of care is to collect a Nucleic Acid Amplification Test (NAAT) swab from the endocervix (or a urine sample) to confirm Chlamydia and Gonorrhea co-infection.
3Implementation & Education• If diagnosed, explain the infection, its risks (preterm labor, infection in baby), and the importance of treatment.
• Administer or arrange for the single-dose Azithromycin as prescribed. Directly observe ingestion if possible to ensure compliance.
• Educate on the need for partner treatment to prevent reinfection. Advise abstinence or consistent condom use until both partners complete treatment.
• Schedule a test-of-cure (repeat testing 3-4 weeks post-treatment) as recommended, especially in pregnancy.
4EvaluationFollow up to confirm medication adherence, assess for resolution of symptoms, and ensure the test-of-cure is negative.
Patient Safety and Precautions:
• Confidentiality is paramount. Use private rooms for discussions.
• Reporting: Chlamydia is a reportable disease to public health authorities in most regions.
• Contraindications: Reinforce that the patient should not take leftover antibiotics from a previous infection. Only use medications prescribed for this specific episode during pregnancy.
Nursing Procedure & Medication FlowProcedure: Collecting an Endocervical NAAT Swab
1. Explain the procedure to the client and ensure privacy.
2. Insert a non-lubricated speculum to visualize the cervix.
3. Use the provided collection swab to firmly sample the endocervical cells (insert into the cervical os and rotate for 10-30 seconds).
4. Place the swab in the appropriate transport medium and label correctly.
5. Remove the speculum and allow the client to dress.Medication: Administering Azithromycin 1g PO
• Verify the order and patient identity.
• Assess for any drug allergies (especially to macrolide antibiotics).
• Provide the tablet with a full glass of water. It can be taken with or without food, but taking it with food may reduce GI upset.
• Document administration and provide education on completing the full dose (it's a single dose).
A Word from Your Senior Nurse
"In the clinic or on the floor, you will see many pregnant women who are anxious or embarrassed about STI symptoms. Your calm, professional, and non-judgmental demeanor is the first step in effective care. Remember, our goal is healthy moms and healthy babies. Catching and treating an infection like chlamydia is a huge win—it prevents so many downstream problems. When you study, don't just memorize 'mucopurulent discharge.' Picture the cervix, understand the inflammation, and connect it to the antibiotic that will fix it. That clinical thinking is what makes a great nurse."
Chlamydia trachomatis — A bacterial sexually transmitted infection often asymptomatic but can cause mucopurulent cervicitis, urethritis, and lead to serious reproductive complications including PID, ectopic pregnancy, and adverse pregnancy outcomes.
Mucopurulent Discharge — A discharge containing both mucus and pus, appearing cloudy or yellowish. It is a hallmark clinical sign of cervical infection, commonly seen with Chlamydia and Gonorrhea.
Azithromycin — A macrolide antibiotic used as first-line treatment for chlamydial infections, especially in pregnancy. The standard dose is a single 1-gram oral dose.
Ophthalmia Neonatorum — Neonatal conjunctivitis that can be caused by Chlamydia trachomatis or Neisseria gonorrhoeae acquired during passage through an infected birth canal. Prophylactic erythromycin ointment is standard care.
Nucleic Acid Amplification Test — A highly sensitive and specific diagnostic test used to detect the genetic material of pathogens like Chlamydia and Gonorrhea. It can be performed on endocervical, urethral, or urine samples.