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Pearl · 05 of 06

In a febrile infant, the young age sets the threshold, not the temperature

Follow an age-based protocol for fever in young infants, and keep a low threshold for admission in the first weeks.

In the youngest infants, serious bacterial infection can present with minimal signs. The younger the infant, the lower the threshold for a full assessment, including cultures, and for admission and empirical treatment under your local protocol.

Look at the whole child: feeding, alertness, colour, work of breathing, perfusion and fontanelle. Examine thoroughly for a source, send urine, and do not rely on a reassuring appearance to exclude infection in the first weeks of life.

  • Use your local febrile-infant protocol, which sets thresholds by age in days.
  • Assess feeding, alertness, colour, breathing and perfusion at every contact.
  • Send urine for analysis and culture in a febrile infant.
  • Give clear safety-net advice and arrange review for infants managed at home.

Why it matters

Appearance can reassure when it should not in the youngest infants.

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