Anaphylaxis is a life-threatening emergency and needs immediate adrenaline administration. Start CPR at any time if needed.
Symptoms of anaphylaxis after vaccination include any one of:
- difficult/noisy breathing
- swelling of tongue
- swelling/tightness in throat
- difficulty talking/hoarse voice
- wheeze or persistent cough
- persistent dizziness or collapse
- pale and floppy (young children)
- Call for help, including an ambulance. Do not leave the person.
- Lie the person on their back, or let them sit up if lying down restricts their breathing.
- Give 1:1000 adrenaline by intramuscular injection into the anterolateral thigh. Dose according to the person’s weight.
- Give oxygen by face mask at a high flow rate, if available.
- If their condition has not improved after 5 minutes, give another dose of 1:1000 adrenaline. Keep giving adrenaline every 5 minutes until the ambulance arrives if their condition does not improve.
- Transfer the person to hospital for further observation and treatment.
- Record the incident, including doses of adrenaline given.
See the Australian Immunisation Handbook for more details.
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