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Paediatrics 8 min read Undergraduate & Postgraduate

Neonatal Sepsis: Recognition, Cultures and Early Treatment

A high-yield neonatal sepsis framework covering subtle presentation, early stabilisation, cultures, empiric antibiotics and meningitis risk.

Exam-oriented educational summary · Updated 10 September 2026

Typical exam stem

A 10-day-old infant presents with poor feeding, lethargy and temperature instability. How would you assess and manage possible neonatal sepsis?

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1. Sixty-second answer plan

1:00

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2. Section checklist

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4. Viva drill

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Question 1 of 30 confident

What are subtle clinical features of neonatal sepsis?

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1

Presentation may be subtle

Neonatal sepsis may present without a clear focal source. Poor feeding, reduced activity, temperature instability, respiratory distress, apnoea, jaundice, vomiting, seizures, abdominal distension or poor perfusion should raise concern. A normal temperature does not exclude serious bacterial infection.

2

Stabilise and investigate

  • Assess airway, breathing, circulation, glucose and temperature immediately.
  • Obtain blood culture before antibiotics when this can be done without dangerous delay.
  • Perform full blood count and other tests according to severity and local protocol; inflammatory markers can support but not independently exclude infection.
  • Consider lumbar puncture when meningitis is suspected or when indicated by the clinical pathway and the infant is stable enough.
  • Assess urine and other cultures according to age, presentation and local guidelines.
3

Treat early and reassess repeatedly

Start age-appropriate empiric intravenous antibiotics promptly in a sick neonate with suspected serious bacterial infection. The regimen should reflect local resistance patterns and whether infection is early or late onset. Treat hypoglycaemia, shock, hypoxaemia and seizures in parallel.

Review culture results and clinical response to narrow, stop or extend therapy appropriately. Failure to improve should prompt reassessment for meningitis, resistant organisms, congenital infection, metabolic disease or a non-infectious neonatal emergency.

Guideline source for further reading

This page is an original exam-revision summary. For clinical decisions, use current local protocols and the primary guidance below.

Educational use: This material is designed for examination revision and does not replace patient-specific clinical judgement, local treatment protocols or specialist advice.