Allergy test - Best Interventional Pulmonologist in Indore
Allergy test
An allergy test is a diagnostic procedure used to identify substances (allergens) that may cause allergic reactions in an individual. These tests help determine sensitivities to allergens such as pollen, dust, food, animal dander, medications, or insect venom.
Purpose of Allergy Testing
- Diagnosing Allergies: Identifying triggers for conditions like hay fever, asthma, hives, eczema, or food allergies.
- Customizing Treatment: Determining which allergens to avoid and guiding immunotherapy (allergy shots or tablets).
- Monitoring Allergies: Assessing changes in allergic sensitivities over time.
Preparation for Allergy Testing
Avoid antihistamines and certain medications (e.g., corticosteroids) before the test, as they can affect results.
Inform the doctor of any existing medical conditions or medications.
Advantages
- Quick and accurate for identifying allergens.
- Enables targeted allergy management.
- Minimally invasive, especially skin tests.
Risks
- Mild discomfort from skin tests.
- Rarely, severe allergic reactions like anaphylaxis can occur, especially with intradermal or challenge tests.
- Blood tests may require a needle, causing minor pain or bruising.
After the Test
- Allergen avoidance.
- Medications (e.g., antihistamines, corticosteroids).
- Immunotherapy for long-term desensitization.
Types of Allergy Tests
- Skin Prick Test: Small amounts of allergens are applied to the skin, which is pricked to check for reactions like redness or swelling.
- Intradermal Test: A small amount of allergen is injected under the skin to check for a reaction.
- Patch Test: Allergens are placed on adhesive patches, applied to the skin for 48 hours to detect delayed allergic reactions.
- Blood Test (e.g., RAST or IgE Test): Measures the level of allergy-related antibodies in the blood to specific allergens.
- Challenge Test: A controlled exposure to an allergen (usually via food or inhalation) under medical supervision to confirm allergies.
- Elimination Diet Test: Specific foods are removed and reintroduced to identify food allergies.
