Symptoms

Anaphylaxis is a life-threatening allergic reaction characterised by: [1]

• sudden onset

AND

• rapid progression of signs and symptoms

AND

• involving two or more organ systems

Respiratory

• Wheeze/Stridor
• Upper airway swelling (tongue/throat/uvula or larynx/lips)
• Dysponea and respiratory distress

Skin

• Generalised urticaria/erythema
• Angioedema with swelling of face/eyes/lips
• Generalised pruritus/itch with or without rash

Cardiovascular

• Measured Hypotension with pallor
• uncompensated shock

Note: Gastrointestinal symptoms may also be present such as vomiting, severe abdominal pain, diarrhoea, etc.      

1. HSE Anaphylaxis Guidelines, September 2016. Available via HSE Anaphylaxis guidelines, 2016