Abstract
You are called to the treatment room to see a 17-year-old boy who has become unwell after receiving the influenza vaccination. You note he has erythema and swelling at the site of injection and he is wheezing. You suspect anaphylaxis. His observations have been noted by the nurse:
Temperature 37.4°C
Blood pressure 90/60 mmHg
Pulse 128 per minute
Respiratory rate 28 breaths/minute
Oxygen saturations 93% in room air
Adrenaline 0.5 ml 1:1000 intramuscularly Adrenaline 1 ml 1:1000 intramuscularly Hydrocortisone 200 mg intramuscularly Chlorphenamine 10 mg intramuscularly Chlorphenamine 10 mg orally