Primary Care Liaison

Allergic reaction - Anaphylaxis

  • Introduction

    This guideline relates to allergic reactions or anaphylaxis in paediatric patients. For more information please visit: Allergy and Immunology : Allergy and Immunology

     

    This does not cover acute management. Please call an ambulance (000) if concerned.

     

    For more information on acute management and details on history taking, please see:

    When to refer

    • ALWAYS refer confirmed or suspected anaphylaxis to the RCH Department of Allergy and Immunology. This is an URGENT REFERRAL
    • Clinical history or specific IgE blood testing indicates that a child may be growing out of moderate to severe allergy and challenge testing is required
    • Food allergy:
      • Specific IgE blood test is positive
      • Suspected IgE or non IgE mediated food allergy  is causing one of the following:
        • Severe eczema (or asthma in rare cases)
        • Failure to thrive
        • Dysphagia
        • Reflux/GI symptoms
    • Drug allergy:
      • Allergy skin test is required
      • Challenge testing is required to identify a safe drug for future use (e.g., anaesthetic or a patient with a history of severe penicillin allergy)
      • There is no other drug alternative  (e.g., insulin, chemotherapy or penicillin) and desensitisation is required to get the child onto the drug without causing a severe allergic reaction (transient tolerance)
    • Latex allergy:
      • All patients with suspected latex allergy
    • Insect sting:
      • Desensitisation is indicated (e.g., anaphylaxis to stinging insect)
      • History and RAST/SPT do not correspond and further specialised testing (i.e. challenge) is required
      • When a patient is identified as having a systemic reaction to insect venom
      • When a diagnosis of Jack jumper ant allergy is suspected (Note: RAST to JJA is currently only available as a research test (2011)

    Do not refer                                               

    • For allergy screening if there is no clear history of allergic reaction
    • When family history is positive, in a healthy patient who does not have an allergic condition
    • Food allergy:
      • Suspected food intolerance (contact General Medicine or Gastroenterology department)
    • Drug allergy:
      • If the drug reaction is mild, there are alternative drugs available and avoidance is an option for management (e.g., Ceclor reactions)
    • Insect sting:
      • Large local reactions and mild-moderate systemic reactions are NOT indications for desensitisation

    Services available closer to home

    Alternative paediatric allergy services available in Victoria include:

    • Public paediatric allergy services:
      • The Northern Hospital
      • Sunshine Hospital
      • Monash Children’s Hospital
    • Consider referral to a private allergist as an alternative to RCH. Options available on ASCIA website: Locate a specialist

    Referral criteria/required information

    • History of allergic reaction:
      • Type of latex
      • Specific details of nature of reaction, previous or subsequent exposure?
      • History of atopy e.g., eczema or asthma
      • Family history of allergies

    How to refer

    RCH Specialist Clinics Referral.pdf

    Please complete the above and submit via:

    • Fax (03) 9345 5034 or
    • Email screferrals@rch.org.au
    • Urgent referral or clinical query call ED or Registrar on-call (03) 9345 7062

    Suggested pre-referral work-up/management 

    Pre-referral management includes:

    • Diagnostic:
      • Detection of latex-specific IgE by RAST test
      • Note: SPT (Skin Prick Test) is not recommended for latex
    • Interpretation of RAST test:
      • Test results should be interpreted together with history
      • Positive allergen-specific IgE (RAST or SPT) in the presence of a clear history of allergic reaction confirms clinical allergy
    • Allergen avoidance
    • Prescribe Epi-Pen/Epi-Pen junior

    Information for families

    Resources and links

    Acknowledgements

    The development of this guideline was coordinated by the Department of Allergy and Immunology (Dr Jo Smart and Dr Paulina Alhucema). Guideline reviewed in February 2025.