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Allergens can enter the body through several routes of exposure, including inhalation, ingestion, and direct contact with the skin. Inhalation occurs when airborne allergens, such as pollen or dust mites, are breathed in. Ingestion happens when allergens, like certain foods, are consumed. Direct contact can occur through skin exposure to substances like latex or certain plants, leading to localized allergic reactions.
What else can I help you with?
What are the causes of allergic conjunctivitis?
Exposure to an allergen.
A state of abnormal hypersensitivity acquired through exposure to a particular allergen?
allergy
A state of abnormal hypersensitivity acquired through exposure to particular allergen?
Yes
What is provocation testing?
Provocation testing involves direct exposure to a likely allergen, either through inhalation or ingestion. Positive reactions from any of these tests may be used to narrow the candidates for the actual allergen causing the allergy.
What antibody is produced in a reaction to an allergen?
The antibody is specific to the antigen (allergen). Different antibodies are produced at different times of exposure (IgM=acute; IgG=longterm) or in different systems of the body (IgA is produced in the gut).
What do hives on the thigh specifically mean?
Hives on the thigh have no specific meaning, unless it might point to exposure to some allergen that took place only on the thighs.
What is an initial encounter with an allergen called?
An initial encounter with an allergen is called sensitization. During this process, the immune system mistakenly identifies a harmless substance as a threat, leading to the production of specific antibodies, known as immunoglobulin E (IgE). This initial exposure typically does not result in symptoms, but it primes the immune system for future encounters, which can lead to allergic reactions. Subsequent exposures may trigger symptoms as the body reacts to the allergen.
How is chronic poisoning caused?
A person may accumulate toxic amounts of a chemical in his or her body through daily exposure to the chemicals. Common routes of exposure include
What are skin tests?
Skin tests are performed by administering a tiny dose of the suspected allergen by pricking, scratching, puncturing or injecting the skin.Reactions are usually evaluated approximately fifteen minutes after exposure.
What is exposure assessment?
This is the process of estimating or measuring the magnitude, frequency and duration of exposure to an agent, as well as the number and characteristics of the population exposed. It describes sources, pathways, routes and uncertainties.
Is an allergen a antigen?
NO
Is an allergen an antigen?
NO
