Allergy screening

Also Known As: Allergy screening

Consult for Allergy screening at Samyak.

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About the Test
Description:

Allergy screening is used to identify the substances that may be causing an allergic reaction in a person. Allergies are the body's immune system's reaction to substances that are normally harmless, such as pollen, dust, or certain foods. When the body comes into contact with an allergen, it produces antibodies called immunoglobulins, which can trigger an allergic reaction.

Clinical Significance:

Skin prick test: This test involves applying a small amount of an allergen to the skin and observing the reaction. It may be used to help diagnose allergies.

Patch test: This test involves applying a patch containing an allergen to the skin and observing the reaction. It may be used to help diagnose allergies or to determine the cause of skin irritation.

Blood test: A blood test called an allergy panel can be used to measure the levels of certain antibodies, such as immunoglobulin E (IgE), in the blood. This test may be used to help diagnose allergies or to monitor the effectiveness of treatment for allergies.

Challenge test: This test involves administering a small amount of an allergen to the person and observing the reaction. It may be used to confirm the results of other allergy tests or to determine the cause of an allergic reaction.

It's important to note that a single allergy test result may not provide enough information to diagnose a medical condition. It's important to consider other factors such as a person's medical history and any other symptoms they may be experiencing. If you have concerns about allergies or are experiencing any unusual symptoms, it's important to discuss them with your healthcare provider. They can help determine the cause of your symptoms and recommend appropriate treatment.

More about Tests

Learn more about laboratory testing

Target Levels (where applicable)

Allergy screening typically targets common allergens, such as pollen, dust, mold, food, and animal dander. The specific allergens that are tested for may vary depending on the individual's medical history, symptoms, and other factors.

What is being checked

Skin prick test: This test involves applying a small amount of an allergen to the skin and observing the reaction. It may be used to help diagnose allergies.

To perform the skin prick test, a healthcare provider will apply a small amount of the allergen to the skin using a needle or a small plastic device. The allergen is usually applied to the arm or the back. The skin is then observed for any reactions, such as redness, swelling, or itching.

Patch test: This test involves applying a patch containing an allergen to the skin and observing the reaction. It may be used to help diagnose allergies or to determine the cause of skin irritation.

To perform the patch test, a healthcare provider will apply a patch containing the allergen to the skin, usually on the upper arm or the back. The patch is typically left in place for 48 hours, and the skin is then observed for any reactions, such as redness, swelling, or itching.

Blood test: A blood test called an allergy panel can be used to measure the levels of certain antibodies, such as immunoglobulin E (IgE), in the blood. This test may be used to help diagnose allergies or to monitor the effectiveness of treatment for allergies.

To perform the blood test, a healthcare provider will take a sample of blood from a vein, usually in the arm. The blood sample is then sent to a laboratory, where it is analyzed to determine the levels of IgE.