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Thyroid Receptor Antibodies

Thyroid Receptor Antibodies

The IgG food sensitivity test is a diagnostic tool used to identify delayed immune reactions to various foods, including Swiss cheese. It measures Immunoglobulin G (IgG) antibodies in the blood, which can indicate how the immune system responds to specific food antigens. Elevated IgG levels suggest a sensitivity, potentially causing symptoms like bloating, fatigue, and digestive issues. The test involves a blood sample analyzed through an enzyme-linked immunosorbent assay (ELISA) to detect IgG antibodies against a wide range of foods, such as dairy, fruits, vegetables, and grains. While the test is useful for identifying complex sensitivities, its scientific validity is debated, with some experts suggesting that elevated IgG levels may reflect normal exposure rather than sensitivity. Despite this, the test can guide dietary interventions and symptom management, especially when other diagnostic methods fail. Patients should consult healthcare professionals to interpret results and make informed dietary decisions.

Price of test:£157

The lowest price from the last 30 days: £157

Awaiting result:

One day

Collect material:

Blood

Prepare:

Learn more

Purpose of the test

The IgG food sensitivity test is a diagnostic tool for identifying delayed reactions to foods, such as Swiss cheese. It measures IgG antibodies in the blood, indicating immune responses to food antigens. Key points include:

- IgG Role: Common antibody, reacts to food proteins.
- Test Process: Blood sample analyzed via ELISA.
- Foods Tested: Includes dairy, fruits, meats, etc.
- Symptoms: Bloating, fatigue, digestive issues.
- Preparation: Consume normal diet before testing.
- Interpretation: Elevated IgG suggests sensitivity.
- Clinical Use: Helps tailor dietary interventions.
- Limitations: Scientific validity debated.

Who Should Get Tested

The Thyroid Receptor Antibody (TRAb) test is vital for diagnosing autoimmune thyroid diseases like Graves' and Hashimoto's. It measures autoantibodies targeting the thyroid-stimulating hormone receptor, affecting thyroid function. Key uses include:

- Differential Diagnosis of Thyrotoxicosis: Helps distinguish causes like Graves' disease.
- Diagnosing Graves' Disease: Elevated TRAb levels indicate this condition.
- Neonatal Thyrotoxicosis Risk: Assesses risk in pregnant women with Graves' history.
- Gestational Thyrotoxicosis: Differentiates from Graves' disease.

The test's sensitivity and specificity aid in therapy selection and prognostic predictions, enhancing patient care.

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 making informed dietary decisions. Here's a concise guide:

- Elevated IgG Levels: Suggests sensitivity to specific foods, potentially causing symptoms like bloating and fatigue.
- Low IgG Levels: Indicates tolerance, but reintroduction should be cautious.
- Preparation: Consume a normal diet before testing; reintroduce avoided foods for accurate results.
- Interpretation: Elevated IgG doesn't always mean sensitivity; consult a healthcare professional.
- Limitations: IgG testing is debated; not a definitive allergy diagnosis tool.
- Clinical Use: Helps identify problematic foods, guiding dietary changes for symptom relief.

Price of test:£157

The lowest price from the last 30 days: £157

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