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Hazel tree pollen IgG

Hazel tree pollen IgG

The Hazelnut IgE test is a specialized diagnostic tool designed to evaluate allergic reactions to hazelnuts by measuring Immunoglobulin E (IgE) antibodies in the blood. This test is crucial for individuals who suspect a hazelnut allergy, which can range from mild symptoms to severe anaphylaxis. The process begins with a blood sample, which is analyzed using Fluorescent Enzyme Immunoassay (FEIA) to detect IgE levels. Initial screening measures total IgE specific to hazelnuts, with further testing for specific components like Cor a 1, Cor a 8, Cor a 9, and Cor a 14 if necessary. These components help identify the nature and severity of the allergy. Results are interpreted based on IgE levels, indicating varying degrees of sensitization. However, clinical correlation with the patient's history is essential, as positive results suggest sensitization but do not confirm an allergy. The test aids in understanding the allergy's nature, guiding appropriate management and treatment.

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 Hazelnut IgE test is designed to evaluate allergic reactions to hazelnuts by measuring IgE antibody levels. Key objectives include:

- Detection: Identify presence of IgE antibodies specific to hazelnuts.
- Severity Assessment: Determine the severity of sensitization through IgE levels.
- Component Analysis: Identify specific hazelnut components (Cor a 1, Cor a 8, Cor a 9, Cor a 14) causing reactions.

Results guide clinical decisions but must be correlated with patient history for accurate allergy management. Limitations include potential false positives and cross-reactivity, emphasizing the need for comprehensive evaluation.

Who Should Get Tested

The Hazel Tree Pollen IgG test measures IgG antibodies specific to hazel tree pollen. While it provides data on immune response, its role in diagnosing allergies is debated. Key points include:

- Procedure: Blood sample collection, serum separation, and enzyme immunoassay analysis.
- Turnaround: Results in 3 business days.
- Specimen: Requires 0.5 mL serum; lipemic samples may be rejected.
- Interpretation: Results lack disease-associated significance; specialist interpretation needed.
- Clinical Use: Not typically used for allergy diagnosis; IgE tests are preferred.
- Management: Avoidance and medication for hazel pollen allergy.

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 hazelnut allergies effectively. The Hazelnut IgE test measures IgE antibodies to determine sensitization levels. Here's a quick guide:

- Total IgE Levels:
- <0.10 kU/L: Negative
- 0.10 – 0.34 kU/L: Equivocal/Low
- 0.35 – 3.49 kU/L: Low
- 3.50 – 17.49 kU/L: Medium
- 17.50 – 49.99 kU/L: High
- >50.00 kU/L: Very High

- Specific Components:
- Detectable IgE levels (≥0.10 kUa/L) indicate potential sensitization.

Always correlate results with clinical history for accurate diagnosis and management.

Price of test:£34

The lowest price from the last 30 days: £34

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