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Neonatal Infection – NICE NG195 Snapshot

Determining the need for antibiotic treatment in babies <72 hours old (adapted from the NICE visual summary).

1. Assess

Gather perinatal risk factors and look for clinical indicators of early onset infection.

  • Review maternal history and intrapartum course
  • Examine the baby; document vital signs
  • Consider age in hours and overall stability
2. Classify

Decide if red-flag risk, possible risk, or observation only.

  • Any red flag → start antibiotics
  • ≥2 non-red-flag risks or 1 risk + concerning sign → discuss treatment
  • No risks and well baby → enhanced observation
3. Act & Review

Plan monitoring, investigations, and when to stop antibiotics.

  • Immediate blood culture before first antibiotic dose
  • Review at 36 hours (earlier if clinical change)
  • Communicate plan with parents / carers

Maternal & Perinatal Risk Factors

Red flag Other risk factors
  • Confirmed or suspected chorioamnionitis
  • Maternal intrapartum sepsis or septic shock
  • Previous baby with invasive group B strep disease
  • Clinician concern of overwhelming sepsis at birth
  • Maternal temperature ≥38°C during labour or in 24 h post-partum
  • Prolonged rupture of membranes (≥24 h)
  • Intrapartum antibiotics given <4 h before birth
  • Maternal colonisation with group B strep
  • Preterm birth <37 weeks without labour prophylaxis

If any red flag is present, start empirical IV antibiotics (benzylpenicillin + gentamicin) immediately and admit for enhanced monitoring.

Clinical Indicators in the Baby

Concerning observations
  • Persistent respiratory distress or apnoea
  • Cardiovascular instability (tachy/bradycardia, poor perfusion)
  • Temperature instability (≤36°C or ≥38°C)
  • Altered tone, seizures, lethargy, irritability
Feeding & metabolic clues
  • Poor feeding, abdominal distension, bile-stained aspirates
  • Unexplained hypoglycaemia or metabolic acidosis
  • Prolonged capillary refill or persistent mottling
  • Clinician or parental concern about behaviour

Management Pathway

Start antibiotics now

Initiate IV benzylpenicillin + gentamicin if:

  • Any red-flag risk factor, or
  • Clinically unwell/septic baby, or
  • ≥2 non-red-flag risks and concerning sign
Discuss & consider antibiotics

Shared decision (consult neonatology) if:

  • 1 non-red-flag risk + 1 clinical indicator
  • Persistent parental concern
  • Borderline abnormal vitals that do not improve
Enhanced observation

For well babies without risk factors:

  • Structured observations for ≥12 hours
  • Document vitals every 2–4 hours
  • Escalate immediately if new signs develop

Investigations & Monitoring

Before first antibiotic dose
  • Blood culture (minimum 0.5 mL ideally 1 mL)
  • Full blood count (interpret cautiously)
  • Consider CRP (repeat 18–24 h if ongoing concern)
  • Lumbar puncture if signs of meningitis or positive culture
Review & stopping rules
  • Formal review by senior decision maker at 36 hours
  • Stop antibiotics at 36 hours if blood cultures negative, baby clinically well, and CRP normal / trending down
  • Continue for minimum 7 days if culture-positive or ongoing clinical suspicion
  • Document monitoring plan and safety net advice