Introduction
This guideline
relates to a suspected latex allergy in paediatric patients.
With the advent
of latex free gloves, this is now increasingly uncommon.
Latex allergies can occur
in a number of forms. Some are IgE mediated while others are due to other
immune mechanisms. Risk factors for latex allergy include:
- Repeated surgical
procedures
- Spina bifida
- VP shunt
- Repeated catheterisation
- Repeated latex exposure
Signs and symptoms
include:
Mild to
moderate local allergic reaction
- Swelling of lips, face or eyes
- Hives or welts
- Abdominal pain/ vomiting
Severe
systemic allergic reaction (anaphylaxis)
- Difficulty breathing
- Swelling of the tongue
and/or throat
- Difficulty talking
- Hoarse voice, wheezing
or persistent coughing
- Loss of consciousness
and/or collapse
- Infants and young
children appearing pale and floppy
Severe allergic reaction
(anaphylaxis) will typically include multiple organ systems (i.e. hives and
respiratory symptoms), but may also involve only one system if affecting
respiratory or cardio-vascular system.
Latex proteins may also be
directly inhaled if they are present in powder form (eg gloves), causing upper
or lower airway symptoms.
Products that may contain
latex include:
-
Gloves
- Medical equipment, Bandages,
Dressings
- Balloons
- Rubber toys, baby dummies
- Condoms
Other related issues: Some
patients with latex allergy may describe oropharyngeal itching and swelling
when eating certain fruits which are mainly banana, avocado, or kiwi fruit as
there may be cross reacting IgE antibodies between latex and some other plant
allergens. These foods do not need to be avoided, unless there are symptoms.
When to refer
- All patients with a suspected latex allergy
- If patient history is suggestive of allergy,
even if RAST is negative
- For further specialised assessment/ testing if
diagnosis is not clear (i.e. formal
challenge)
Wait time for appointments
Specialist Clinics wait times
Services available closer to home
Alternative
paediatric allergy services that are able to assess for Latex allergy available
in Victoria include:
- Public paediatric allergy services:
- Consider referral to a private allergist as an
alternative to RCH. Options available on ASCIA website: Locate a
specialist
Pre-referral work up/management
History:
- Type of latex
- Specific details of nature of reaction, previous
or subsequent exposure?
- History of atopy e.g., eczema or asthma
Diagnostics:
- Detection of latex-specific IgE or RAST for Latex if this has been
done
- Interpretation of RAST:
- Test results should be interpreted together
with history
- RAST has limited sensitivity for latex allergy and may be falsely
negative
- Positive latex-specific IgE (RAST) in the presence of a clear history of
allergic reaction confirms clinical allergy
Referral criteria/required information
The GP at first consultation is in the best position to get the
most comprehensive information from parents on the details of an allergic
reaction. Please collect and include in your referral as much detail as
possible. Referrals may be rejected if information is insufficient to triage
appropriately
Please include:
- CLEARLY INDICATE if the child has confirmed or
suspected ANAPHYLAXIS. The referral will be triaged as urgent
- Date reaction(s) occurred
- Allergic reaction signs/symptoms (see mild,
moderate and severe symptoms above)
- Potential causes of reaction(s) e.g., form of latex?
- When, where and how did
the reaction(s) happen?
- RAST results if these were
done
- Treatment given and
patient response
- Previous or subsequent
exposure to allergen
How to refer
Specialist Clinics referral
Please complete the above and
submit via:
Information for families
Provide advice on avoidance of latex
exposure e.g. dental procedures, condoms, balloons etc
Provide an ASCIA allergy management
plan (even if trigger not yet confirmed)
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.