Wheat IgE

The Wheat IgE test is a vital diagnostic tool used to identify IgE antibodies in the serum, signaling an immune response to wheat allergens. This test is essential for diagnosing and managing wheat allergies, which are prevalent food allergies. It helps pinpoint the allergen causing symptoms like hives, nausea, and, in severe cases, anaphylaxis. The procedure involves collecting a serum sample, which is analyzed using Fluorescence Enzyme Immunoassay (FEIA) to detect specific IgE antibodies. The test's results, expressed as a class score or kU/L, indicate the severity of the allergic response. While a positive result suggests IgE-mediated sensitivity to wheat, it must be interpreted within the clinical context due to potential false positives, especially in patients with grass pollen allergies. Effective management of a diagnosed wheat allergy involves avoiding wheat products, using medications for symptom relief, and considering immunotherapy for severe cases.

Price of test:£39

The lowest price from the last 30 days: £39

Awaiting result:

12 hours

Collect material:

Blood

Prepare:

Learn more

Purpose of the test

The Wheat IgE test is essential for diagnosing wheat allergies by detecting IgE antibodies in serum. Its objectives include:

- Identifying wheat allergens causing symptoms like hives, nausea, and anaphylaxis.
- Confirming sensitization before immunotherapy.
- Investigating allergic reactions to other allergens.

The procedure involves serum collection, with stability maintained for up to 14 days refrigerated or 90 days frozen. Using Fluorescence Enzyme Immunoassay, the test measures IgE levels, indicating allergy severity. Accurate interpretation is crucial, considering potential false positives, especially in patients with grass pollen allergies. Effective management involves avoiding wheat and considering immunotherapy for severe cases.

Who Should Get Tested

The Wheat IgE test is essential for diagnosing wheat allergies, which are common food allergies. It identifies IgE antibodies in the serum, indicating an immune response to wheat allergens. Key points include:

- Purpose: Diagnoses wheat allergy, confirms sensitization, and investigates allergic reactions.
- Procedure: Serum sample collection, using serum gel or red-top tubes.
- Specimen Stability: Refrigerated for 14 days or frozen for 90 days.
- Methodology: Uses Fluorescence Enzyme Immunoassay (FEIA).
- Interpretation: Positive results suggest IgE-mediated sensitivity.
- Management: Avoid wheat, use medications, and consider immunotherapy.

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 wheat allergies effectively. Here's a concise guide:

- Positive Result: Indicates IgE-mediated sensitivity to wheat. Consider clinical context, as some may have measurable IgE without significant symptoms.
- IgE Levels: Higher levels suggest a stronger allergic response. Results are expressed as class scores or kU/L.
- Clinical Interpretation: Symptoms can range from mild to severe, including anaphylaxis. Non-IgE reactions may take longer to manifest.
- False Positives: Common in patients with other allergies, like grass pollen. A wheat challenge test may be necessary for confirmation.

Price of test:£39

The lowest price from the last 30 days: £39

AI-Powered Insights and Expert Validation

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