Hypoxic Respiratory Failure in Term & Near Term Infants: Scottish Perinatal Network Neonatal Guideline

Warning

This guideline has been developed for medical staff caring for term and near term (>34wk) infants throughout Scotland.

Respiratory failure is a failure of the respiratory system to oxygenate (hypoxaemia) or to clear CO2 (hypercapnia). Invasively ventilated babies with one or more of:

  • Oxygen requirement ≥ 60% (to achieve preductal saturation of 94% and above)
  • pCO2 ≥ 8kPa
  • H+ ≥ 60 (pH <7.22)

should be considered at risk of hypoxic respiratory failure (HRF) and persistent pulmonary hypertension of the newborn (PPHN). These babies require advanced management strategies and early discussion with a specialist centre for consideration of transfer.

The aim is to provide standardised care for these babies and provide a pathway to aid management and referral to a specialist centre if required for ongoing care. This guideline will not cover the management of babies born with congenital diaphragmatic hernia.

The monographs for medications referenced in this document can be accessed via https://www.perinatalnetwork.nhs.scot/professionals/guidance/local-regional-drug-monographs/

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Editorial Information

Last reviewed: 22/04/2026

Next review date: 22/04/2029

Author(s): Scottish Perinatal Network.

Version: 2

Approved By: Scottish Perinatal Network Neonatal Guideline Oversight Group