Allergy Blood Testing
Allergy blood testing, also known as a specific IgE blood test or serology, is a medical test used to determine if a person has an allergic reaction to a specific substance or allergen.
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Allergy blood testing is a safe and accurate method of diagnosing allergies
Allergy blood testing, also known as specific IgE blood testing, is a diagnostic test used to determine if a person is allergic to a particular substance. This test measures the amount of allergen-specific antibodies, called immunoglobulin E (IgE), in a person's blood. IgE antibodies are produced by the body's immune system in response to exposure to allergens, such as pollen, pet dander, or food proteins.
Allergy blood testing is often used as an alternative to allergy skin testing for people who cannot undergo skin testing due to skin conditions or medication use. The results of the allergy blood test are interpreted to determine which allergens are causing the person's symptoms.
The test benefits
Allergy blood testing is a method used to diagnose allergies by measuring the level of allergen-specific antibodies in the blood. Here are some benefits of allergy blood testing:
- Non-invasive: Blood test is drawn from the arm
- No medication interference: Not affected by meds
- Safe for severe allergies: Safer than skin testing
- Comprehensive results: Tests for various allergens
- Accurate: Highly accurate with low false results.
When is it needed to perform?
The test may be performed on individuals who cannot undergo the allergy skin test due to medication or skin conditions.
Skin test interference
If a person is unable to undergo skin testing due to medication use or skin conditions, allergy blood testing may be recommended.
High risk of reaction
For individuals who have a history of severe allergic reactions or anaphylaxis, allergy blood testing may be a safer alternative to skin testing.
Multiple allergen testing
Allergy blood testing can test for multiple allergens in one sample, making it useful for identifying a wide range of allergies.
Medical conditions
If a person has a medical condition that makes skin testing unsafe, such as severe eczema, allergy blood testing may be recommended.
Specific allergens
Allergy blood testing can identify specific allergens, such as certain foods or drugs, that are suspected of causing an allergic reaction.
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What are the procedural steps?
Here are the four main steps of the test’s procedure:
Consultation and Preparation
We’ll review the person's medical history and symptoms, and discuss any medications they may be taking that could interfere with the test.
Blood Sample Collection
A blood sample will be drawn from a vein in the arm.
Laboratory Analysis
The blood sample is sent to a laboratory for analysis, where it will be tested for specific allergen antibodies.
Interpretation and Results
Test results will determine which allergens are causing the person's symptoms. The results will be shared with the person and used to develop a treatment plan.
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Many Interventional Pulmonology procedures can be performed with local anesthesia, which means patients are awake during the procedure. However, some procedures may require general anesthesia, which will be discussed with the patient beforehand.
Recovery time can vary depending on the type of procedure performed and the patient's overall health. Many patients are able to return home on the same day as the procedure, and full recovery can take anywhere from a few days to several weeks. The specialist will provide specific instructions for post-procedure care and follow-up appointments to monitor progress.
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