Allergen Testing
Health Checkups
estimated about CNY 200-800
(estimated about USD 30-$120)
30 min
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Description
Allergen testing identifies specific substances triggering allergic reactions—ideal for patients with unexplained rashes, breathing difficulties, or digestive issues—and costs $30–$120 (200–800 yuan), with ChinaMedicalHub assisting with hospital booking and interpreter support.
Main Uses
Allergen testing is primarily used to identify specific substances that may cause allergic reactions in individuals. It is applicable in scenarios such as diagnosing food, environmental, or drug allergies, guiding treatment plans including immunotherapy, and helping patients avoid known allergens to prevent allergic reactions. This test is also useful in monitoring the effectiveness of allergy treatments over time.
Normal Range
The normal range for allergen testing typically indicates no significant levels of specific IgE antibodies to the tested allergens. Values are usually reported as kU/L, with a general guideline that values below 0.35 kU/L are considered negative or within the normal range, although this can vary depending on the specific allergen and the laboratory.
Low Values - Possible Causes
Low values in allergen testing, indicating a lack of specific IgE antibodies, can be due to: 1) No exposure or minimal contact with the allergen, 2) Non-allergic conditions, 3) The individual has not developed an immune response to the allergen, 4) Testing was done too early after exposure, 5) Technical issues with the test itself.
High Values - Possible Causes
High values in allergen testing, indicating elevated levels of specific IgE antibodies, can be caused by: 1) Actual allergy to the tested substance, 2) Cross-reactivity with similar allergens, 3) Recent or frequent exposure to the allergen, 4) Atopic predisposition (genetic tendency towards allergies), 5) Certain infections or diseases that can elevate IgE levels non-specifically.
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