In this section
Emergency drug and fluid calculator
Most reactions occur within 30 minutes of exposure to a trigger but can occur up to 4 hours.
Identify risk factors for fatal anaphylaxis
Anaphylaxis is a clinical diagnosis. A detailed history, particularly of pre-hospital events, is vital to identifying anaphylaxis and its associated trigger, as often some symptoms are transient and resolve prior to arrival in the acute care setting.
features (most common in children)
The following doses of adrenaline may
be used if the weight is unknown:
This should only be run for a maximum of 1-2 hours (to avoid fluid overload), and in consultation with PIPER/specialist PICU input:
Anaphylaxis is a clinical diagnosis. A serum tryptase has no role in acute management of anaphylaxis. It should only be ordered after consultation with a paediatric allergy specialist in special circumstances.
All children with anaphylaxis should be observed for at least 4 hours in a supervised setting with facilities to manage deterioration.
Admission for a minimum 12 hour period of observation is recommended if:
The acute care setting should provide resources, education and follow up options to the family including:
For emergency advice and paediatric or neonatal ICU transfers, call the Paediatric Infant Perinatal Emergency Retrieval (PIPER) Service: 1300 137 650.
It is a requirement to notify all cases of anaphylaxis presenting to hospitals in Victoria to the Department of Health and Human Services (this does not include cases arising in hospital).
Where the suspected cause is the consumption of a packaged food, notifications are required to be made:
Where the suspected cause is anything other than packaged food, notifications are required to be made:
More details can be found here at
alert on the Emergency Department System if at risk of in-hospital anaphylaxis.
Last revised August 2017