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Macadamia nut IgE

Macadamia nut IgE

The Macadamia nut IgG test is a diagnostic tool designed to assess the presence of IgG antibodies against macadamia nuts in a patient's serum. IgG antibodies are crucial in the immune response, particularly during the secondary phase of an immune reaction. While the presence of these antibodies can indicate sensitization to macadamia nuts, it does not confirm an active allergy. The test is primarily useful in specific clinical scenarios, such as evaluating patients before or during immunotherapy. Conducted via an enzyme immunoassay, the test quantifies IgG levels, providing insights into immunologic sensitization. A serum sample is required, with stability maintained for up to 14 days refrigerated or 90 days frozen. Results are reported in micrograms per milliliter, with positive results generally above 2.0 mcg/mL. Physicians must interpret results within the broader clinical context, considering patient symptoms and history, as the test alone does not diagnose an active allergy.

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 Macadamia nut IgG test evaluates IgG antibodies against macadamia nuts in serum, offering insights into immunologic responses. Key points include:

- Clinical Utility: Useful in specific situations like immunotherapy evaluation, but not definitive for active allergies.
- Procedure: Conducted via enzyme immunoassay, providing precise IgG quantification.
- Specimen Requirements: Requires 0.5 mL serum, stored refrigerated or frozen.
- Interpretation: Results in mcg/mL; positive above 2.0 mcg/mL, context-dependent.
- Limitations: IgG presence doesn't confirm active allergy; consider symptoms and history.

Who Should Get Tested

The Macadamia nut IgE test is essential for diagnosing allergies to macadamia nuts, which can range from mild to severe reactions. This test identifies specific IgE antibodies in the blood, confirming sensitization and guiding treatment plans. Key points include:

- Purpose: Diagnose macadamia nut allergies.
- Method: ImmunoCAP FEIA, measuring IgE levels.
- Specimen: Serum sample, 0.3 mL minimum.
- Stability: Room temperature or refrigerated for 14 days; frozen for 90 days.
- Turnaround: 1-3 days.
- Results: Ranges from negative to extremely strongly positive.

This test aids in managing allergies effectively.

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 for the Macadamia nut IgG test involves recognizing its role and limitations in allergy diagnostics. This test measures IgG antibodies to assess immunologic sensitization, not active allergies. Key points include:

- Clinical Utility: Offers insights into immune response, useful in specific clinical scenarios.
- Procedure: Conducted via enzyme immunoassay, providing precise IgG quantification.
- Specimen Requirements: Requires 0.5 mL serum, stored refrigerated or frozen.
- Reporting: Results in mcg/mL; positive above 2.0 mcg/mL.
- Limitations: IgG presence doesn't confirm active allergy; consider symptoms and history.

Price of test:£34

The lowest price from the last 30 days: £34

AI-Powered Insights and Expert Validation

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