Chestnut (Castanea sativa), t206
2 days 
Available with home visit Chestnut (Castanea sativa), t206 is a test that measures specific IgE antibodies against chestnut allergens (Castanea sativa), helping to identify sensitization to this plant-derived allergen.
Chestnut belongs to the Fagaceae family. Allergic reactions may occur after consuming edible chestnuts or after exposure to allergenic components of the plant. In sensitized individuals, the immune system mistakenly recognizes certain chestnut proteins as potentially harmful and triggers an allergic response.
The test helps confirm or exclude IgE-mediated chestnut allergy and assess the possible role of this allergen in causing allergic symptoms.
Indications
The test is recommended for:
- suspected food allergy after consuming chestnuts;
- itching, redness, or swelling of mucous membranes after contact with chestnut;
- unexplained urticaria or skin rashes;
- symptoms of allergic rhinitis (sneezing, runny nose, nasal congestion);
- asthma symptoms or breathing difficulties after allergen exposure;
- suspected cross-reactive allergies with other plant allergens;
- identifying the cause of allergic reactions.
How is the allergic reaction detected?
In allergic individuals, the immune system mistakenly recognizes chestnut proteins as foreign substances and produces specific IgE antibodies.
Upon repeated exposure to the allergen, immune cells become activated and release histamine and other biologically active substances, causing symptoms such as itching, skin redness, swelling, runny nose, watery eyes, digestive symptoms, or breathing difficulties.
Measurement of chestnut-specific IgE helps identify allergic sensitization and assists the physician in determining further diagnostic steps.
Procedure
The test is performed using a venous blood sample.
The laboratory measures the level of specific IgE antibodies against chestnut allergens (Castanea sativa).
The test is safe because it does not require direct exposure of the patient to the allergen.
Preparation:
No special preparation is required.
It is recommended to:
- inform your physician about medications you are taking;
- have blood collected according to laboratory recommendations;
- avoid strenuous physical activity before testing;
- rest for 10–15 minutes before blood collection.
Antihistamines generally do not affect specific IgE test results and usually do not need to be discontinued before testing unless advised by a physician.
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