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Anaphylaxis: assessment and referral after emergency treatment

  • NICE guideline
  • Reference number: NG258
  • Published:  27 May 2026
  • Guidance
  • Tools and resources
  • Information for the public
  • Evidence
  • History
Download guidance (PDF)
  • Overview
  • Using this guideline
  • Documenting suspected anaphylaxis
  • Timing of blood samples
  • Period of observation
  • Admission to inpatient care
  • Referral to a specialist allergy service
  • Discharge from A&E or inpatient care
  • Terms used in this guideline
  • Recommendations for research
  • Finding more information and committee details
  • Update information

Finding more information and committee details

To find NICE guidance on related topics, including guidance in development, see the NICE topic page on allergies and anaphylaxis.

For full details of the evidence and the guideline committee's discussions, see the full version of the guideline. You can also find information about how the guideline was developed, including details of the committee.

NICE has producedĀ tools and resources to help you put this guideline into practice. For general help and advice on putting our guidelines into practice, seeĀ resources to help you put NICE guidance into practice.


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