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Maternal-Fetal MedicineSociety
SC-001ChecklistHaemorrhage

MEOWS — modified early obstetric warning system

A one-page chart for recording vital signs with automatic identification of warning thresholds.

Version 1.02 pagesUpdated 1 July 2026Patient Safety Committee

Key recommendations

  • Colour-coded thresholds — yellow and red zones
  • One yellow or two red triggers → notify the physician immediately
  • Recording frequency set by risk
  • Print-ready A4 format

Implementing MEOWS is associated with earlier recognition of maternal deterioration. The chart is designed to work without an electronic system.

Note: A guideline is a recommendation and does not replace the clinician's professional judgement in an individual case. Departing from it is acceptable where the reasoning is documented.