Allergen Screening
Health Checkups
≈ ¥200-500
(≈ $30-70)
2 day
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Description
Estimated cost for Allergen Screening at general public hospitals in China is about ¥140-400, and at Grade 3A hospitals about ¥200-500, varying by hospital tier and region.
Main Uses
The primary purpose of an Allergen Screening test is to identify specific substances that may cause an allergic reaction in an individual. It is used in diagnosing allergies, guiding treatment plans, and helping patients avoid known allergens. This test is applicable in scenarios where individuals experience symptoms such as hives, itching, sneezing, or more severe reactions like anaphylaxis, and when there's a need to confirm or rule out specific allergens as the cause.
Normal Range
The normal range for an Allergen Screening test typically indicates no significant levels of specific IgE antibodies to the tested allergens. The exact values can vary depending on the laboratory and the specific allergens being tested, but generally, a class score of 0-1 (or a concentration <0.35 kU/L) is considered within the normal range, suggesting little to no allergic reaction.
Low Values - Possible Causes
A low value in an Allergen Screening test, indicating no or minimal presence of specific IgE antibodies, usually means: No current allergy to the tested substance, Previous desensitization treatment, Temporary suppression of the immune system, Testing performed outside of the allergy season, or Inaccurate testing due to recent use of antihistamines.
High Values - Possible Causes
High values in an Allergen Screening test, indicating elevated levels of specific IgE antibodies, can be caused by: Active allergic reaction to the tested allergen, Seasonal allergies during peak times, Cross-reactivity with similar allergens, Genetic predisposition to allergies, or Exposure to high levels of the allergen.