(32169) Anaphylaxis – Recognition and the ABC Approach

Anaphylaxis is a severe and potentially life-threatening allergic reaction that can develop very quickly. Immediate recognition and treatment are essential to prevent serious harm or death.

If a child with a known allergy suddenly becomes unwell, especially with breathing difficulties, always assume anaphylaxis and act immediately.

Recognising anaphylaxis  - the ABC approach

The ABC approach can help you quickly identify the signs of anaphylaxis. Symptoms can affect more than one part of the body and may appear rapidly.

A - Airway

  • Swelling of the tongue, throat or face
  • Difficulty swallowing or speaking
  • Hoarse voice or changes to voice

B - Breathing

  • Breathing difficulties that can range from noisy breathing (stridor) due to upper airway swelling to wheezing due to lower airway obstruction.
  • Persistent cough
  • Chest tightness or severe asthma symptoms

C - Circulation

  • Dizziness, fainting or collapse
  • Pale, clammy or floppy appearance
  • Rapid heartbeat or low blood pressure

Other symptoms:

  • A sense of impending doom (fear of dying)
  • Skin reactions such as hives, rash or flushing
  • Stomach pain, vomiting or diarrhoea
  • A recent exposure to known food allergens or insect stings.

You do not need to see all of these symptoms to suspect anaphylaxis. Symptoms can worsen quickly, so act immediately.