📌 NCLEX Topic: Antepartum Diagnostic Testing | Group B Streptococcus (GBS) in Pregnancy

📌 NCLEX Topic: Antepartum Diagnostic Testing | Group B Streptococcus (GBS) in Pregnancy

NCLEX Topic: Group B Streptococcus (GBS)

Description:

Group B Streptococcus (GBS) is a gram-positive bacterium that colonizes the rectum, vagina, cervix, and urethra of pregnant and non-pregnant individuals. It is a leading cause of perinatal infections and can result in severe neonatal complications if transmitted during vaginal delivery.

  • GBS colonization is asymptomatic in most pregnant individuals.
  • 20-25% of pregnant individuals are carriers of GBS.
  • Screening is done between 35-37 weeks of gestation.

Transmission & Risks:

  • GBS is transmitted vertically from mother to baby during vaginal delivery.
  • Early-onset neonatal GBS: Occurs within the first week of life (often within 48 hours).
  • Newborn complications include:
    • ✅ Sepsis
    • ✅ Pneumonia
    • ✅ Meningitis → Can result in neurological disabilities or death.
  • Pregnant clients can develop:
    • ✅ Meningitis
    • ✅ Necrotizing fasciitis
    • ✅ Intra-abdominal abscesses

Diagnosis: GBS Screening in Pregnancy

📌 Performed between 35-37 weeks of gestation using:

  1. Vaginal Swab – Taken from the vaginal opening.
  2. Rectal Swab – Taken with a separate sterile swab.

📌 GBS-positive clients require intrapartum antibiotic prophylaxis (IAP) to prevent transmission.

Nursing Interventions & Management:

🚨 If GBS is Positive:

  • ✅ Administer IV antibiotics during labor to prevent neonatal infection.
  • ✅ First-line treatment: Penicillin G
    • If allergic → Clindamycin or Vancomycin
  • ✅ Monitor for signs of infection in both mother and newborn.
  • ✅ Implement contact precautions if GBS infection is present.

Test-Taking Strategy:

  • “GBS-positive pregnancy” → Think IV antibiotics in labor.
  • “Neonatal infection risk” → Sepsis, pneumonia, meningitis.
  • “Prevent transmission” → Administer antibiotics before delivery.

💡 Remember:

  • Screening: 35-37 weeks.
  • IV antibiotics: During labor to protect the baby.

Summary for NCLEX:

  • 🦠 Group B Streptococcus (GBS) is a leading cause of neonatal infections.
  • 🚨 PRIORITY: Screen at 35-37 weeks and administer IV antibiotics in labor if positive.
  • 🩺 Complications: Neonatal sepsis, pneumonia, meningitis, maternal infections.