Brazil nut IgE

The Brazil nut IgG test is a diagnostic tool designed to detect IgG antibodies against Brazil nuts in a patient's serum. IgG antibodies are crucial for the body's immune response, particularly in long-term defense mechanisms. This test is primarily used to identify sensitization to Brazil nuts, although the presence of IgG antibodies does not necessarily indicate a food allergy. It is often employed in specific clinical scenarios to guide dietary elimination and challenge strategies for patients with food-related complaints. The test is conducted using an enzyme immunoassay (EIA) method, requiring a serum sample, typically collected in a red-top or gel-barrier tube. Results are generally available within 2 to 4 business days and are reported in micrograms per milliliter. While a positive result indicates sensitization, it does not confirm an allergy, necessitating correlation with clinical symptoms and other diagnostic tests. The test's limitations include potential false positives and cross-reactivity with other allergens.

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Price of test:£34

The lowest price from the last 30 days: £34

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Awaiting result:

One day

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Collect material:

Blood

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Prepare:

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Purpose of the test

The Brazil nut IgG test is a diagnostic tool used to detect IgG antibodies against Brazil nuts in serum. It plays a role in assessing sensitization but does not confirm food allergies. Key points include:

- Clinical Utility: Helps in food elimination and challenge strategies.
- Procedure: Conducted via enzyme immunoassay (EIA).
- Specimen Requirements: Serum sample, preferably 0.5 mL.
- Turnaround Time: Typically 2-4 business days.
- Interpretation: Positive results indicate sensitization, not allergy.
- Limitations: False positives possible; not definitive for allergies.
- Clinical Correlation: Must align with patient history and symptoms.

Who Should Get Tested

The Brazil nut IgG test is a diagnostic tool used to detect IgG antibodies against Brazil nuts in serum. It helps assess sensitization but doesn't confirm allergies. Key points include:

- Clinical Utility: Useful for diet elimination and challenge in food-related complaints.
- Procedure: Conducted via enzyme immunoassay, requiring a serum sample.
- Interpretation: Positive results indicate sensitization, not necessarily an allergy.
- Limitations: False positives possible; cross-reactivity with other allergens.
- Clinical Correlation: Must be interpreted alongside clinical history and symptoms.

This test aids in managing suspected food sensitization but requires cautious interpretation.

Blood Test Preparation Guidelines
Time of day
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It is recommended to schedule your appointment for blood tests in the morning hours between 7:00-10:00.
Fasting
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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
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Drinking water prior to testing can help with sample collection.
Other factors
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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:
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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:
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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 effective patient management. Here's a concise guide:

- Negative Result: Indicates no detectable IgG antibodies against Brazil nut, suggesting no sensitization.
- Positive Result: Presence of IgG antibodies, indicating possible sensitization but not confirming an allergy.
- Clinical Correlation: Always interpret results alongside clinical symptoms and history.
- Limitations: IgG presence alone doesn't confirm allergies; consider potential cross-reactivity.
- Special Considerations: Use cautiously in patients with prior immunotherapy.

Understanding these aspects ensures informed healthcare decisions.

Price of test:£34

The lowest price from the last 30 days: £34

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