Understanding Lab Tests for Latex-Fruit Syndrome
Written by Private MD Labs Medical Writing Team • Last Updated: September 8, 2025
Latex-Fruit Syndrome is a condition where individuals who are allergic to latex also develop allergic reactions to certain fruits, including bananas, avocados, kiwis, and others. This cross-reactivity occurs due to similar proteins found in both latex and these fruits. Blood tests measuring specific antibodies can help identify this syndrome.
Top Recommended Test
Allergen Specific IgG Latex (H. braziliensis)
This test measures IgG antibodies specific to latex proteins from Hevea braziliensis (rubber tree). Elevated levels may indicate latex sensitization and suggest an individual is at risk for developing latex-fruit syndrome, as latex allergy is the primary component of this cross-reactive condition.
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Diagnosing Latex-Fruit Syndrome
The diagnosis of latex-fruit syndrome relies on identifying allergic sensitization to both latex and cross-reactive fruits through blood testing. These tests measure allergen-specific IgG antibodies, which indicate the immune system's recognition of these allergens and potential for cross-reactive responses.
Other Relevant Tests
Avocado (f96) IgG
This test detects IgG antibodies specific to avocado proteins. Since avocado is one of the most common fruits involved in latex-fruit syndrome cross-reactivity, elevated levels of this antibody can help confirm the fruit component of the syndrome in individuals with known or suspected latex allergies.
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Understanding Cross-Reactivity
The proteins in latex share structural similarities with proteins found in certain fruits, which can trigger allergic reactions in sensitized individuals. Testing for both latex and fruit-specific antibodies helps healthcare providers understand the extent of cross-reactivity and provide appropriate avoidance recommendations.
Important Considerations
The information here is for educational purposes only and is not a substitute for professional medical advice. Always consult with a healthcare provider for diagnosis and treatment. Additional testing for other cross-reactive fruits may be recommended based on individual symptoms and exposure history.
