Egg white IgE

The Egg White IgG test is a laboratory examination that measures IgG antibodies specific to egg white proteins in a patient's serum. IgG antibodies are crucial for long-term immune protection, and this test is particularly useful for diagnosing and managing egg white allergies, a common food allergen, especially in children. The test requires a serum sample collected in a serum separator tube and employs a quantitative immunoassay method to determine IgG levels. Results are interpreted based on IgG concentration, with higher values indicating sensitization to egg white proteins. However, the presence of IgG alone does not confirm an allergy; it suggests immunologic sensitization. The test is valuable in clinical settings for evaluating food-related complaints and guiding dietary management strategies. While it aids in diagnosing egg allergies and predicting outcomes, it must be interpreted alongside clinical history. The Egg White IgG test is a vital tool for healthcare providers in developing appropriate treatment plans for egg white allergies.

Price of test:£34

The lowest price from the last 30 days: £34

Awaiting result:

One day

Collect material:

Blood

Prepare:

Learn more

Purpose of the test

The Egg White IgG test is a laboratory examination that measures IgG antibodies specific to egg white proteins in serum. It aids in diagnosing and managing egg white allergies, common in children. Key points include:

- Clinical Utility: Identifies sensitization to egg white proteins, aiding treatment plans.
- Specimen Requirements: Serum sample in SST, stored refrigerated or frozen.
- Methodology: Uses Fluorescent Enzyme Immunoassay (FEIA) for quantification.
- Interpretation: IgG levels indicate sensitization, not definitive allergy.
- Clinical Context: Guides diet elimination and challenge strategies.
- Special Considerations: Common in children, linked to other allergen sensitizations.

Who Should Get Tested

The Egg White IgE test is essential for diagnosing egg allergies, which can cause symptoms from mild gastrointestinal issues to severe anaphylactic reactions. This test identifies specific IgE antibodies in the blood, confirming sensitization before immunotherapy. Key points include:

- Procedure: Uses Fluorescence Enzyme Immunoassay (FEIA) method.
- Specimen Requirements: Serum sample, 0.5 mL per 5 allergens.
- Interpretation: IgE levels range from class 0 (negative) to class 6 (very high positive).
- Reflex Testing: May include testing for ovalbumin and ovomucoid.
- Management: Guides treatment and prognosis, indicating when oral food challenges are safe.

Blood Test Preparation Guidelines

Time of day

It is recommended to schedule your appointment for blood tests in the morning hours between 7:00-10:00.

Fasting

It is recommended to fast for approximately 12 hours before blood sampling. The last meal of the previous day should ideally be consumed around 6:00 p.m. On the day before the test, avoid heavy and fatty meals as well as alcohol.

Stay hydrated

Drinking water prior to testing can help with sample collection.

Other factors

Tests should not be performed after a sleepless night or intense physical activity. It is recommended to avoid exercise and stress immediately before blood collection and to not smoke. A short rest is recommended.

Medications and supplements:

Blood samples should be collected before the morning dose. Some drugs can interfere with test results. Consult with your doctor whether you can delay your dose because of lab tests.

Biotin supplements:

High doses of biotin supplements can affect test results, causing false elevation or reduction. It's recommended to avoid taking biotin for at least 72 hours before blood collection. If you are taking biotin, inform the personnel collecting the blood so that they can provide specific instructions.

Interpreting Test Results

Understanding test results is crucial for managing egg white allergies effectively. The Egg White IgG test measures IgG antibodies specific to egg white proteins, aiding in diagnosis and management. Here's how to interpret the results:

- Values < 2.00 mcg/mL: Generally indicate no significant sensitization to egg white proteins.
- Higher values: Suggest increasing levels of IgG antibodies, indicating immunologic sensitization.

Remember, IgG presence alone doesn't confirm an allergy. Results should be considered alongside clinical symptoms and medical history for accurate diagnosis and treatment planning.

Price of test:£34

The lowest price from the last 30 days: £34

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