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HDM:D.farinae IgE

HDM:D.farinae IgE

The Immunoglobulin E (IgE) test for house dust mites (HDM), specifically *Dermatophagoides pteronyssinus* (Der p), is a vital diagnostic tool for identifying allergies to these common indoor allergens. House dust mites thrive in environments like bedding and carpets, producing allergens that can trigger reactions in sensitive individuals. The test measures specific IgE antibodies in a patient's serum using a Fluorescence Enzyme Immunoassay (FEIA), such as the ImmunoCAP system. A blood sample is collected, and the serum is tested for IgE antibodies that bind to Der p allergens. The results, expressed in IU/mL, indicate the presence and level of sensitization, aiding in diagnosing HDM allergies. This test is crucial for tailoring treatment plans, such as immunotherapy, and monitoring changes in sensitization over time. Understanding specific IgE levels helps manage symptoms and prevent exacerbations, making the IgE test an essential component in allergy management and treatment strategies.

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 laboratory test for Immunoglobulin E (IgE) to house dust mites, specifically *Dermatophagoides pteronyssinus* (Der p), is vital for diagnosing and managing allergies. This test measures specific IgE antibodies in a patient's serum using a Fluorescence Enzyme Immunoassay (FEIA). Key steps include:

- Sample Collection: Blood is drawn and serum separated.
- ImmunoCAP Assay: Serum is added to a device with Der p allergen.
- Detection: Fluorescence indicates IgE levels.

Results guide diagnosis, allergen identification, and treatment. Understanding IgE levels aids in managing symptoms and tailoring immunotherapy.

Who Should Get Tested

The laboratory test for IgE antibodies against *Dermatophagoides farinae* is essential for diagnosing allergies to house dust mites. This test identifies specific IgE antibodies in a patient's serum, confirming sensitization before starting immunotherapy. The procedure involves:

- Sample Collection: Blood is drawn and stored in a serum gel tube.
- Serum Preparation: Centrifugation separates serum for testing.
- ELISA Testing: Detects IgE antibodies using a colorimetric change.
- Result Interpretation: IgE levels indicate allergy severity.

This test aids in diagnosis, treatment planning, and monitoring allergic reactions, despite some limitations.

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 Immunoglobulin E (IgE) test to house dust mites, specifically *Dermatophagoides pteronyssinus* (Der p), is crucial for managing allergies. Here's a concise guide:

- Positive Result: Indicates presence of specific IgE antibodies to Der p, suggesting an allergy to house dust mites.
- Significance Level: Levels above 0.35 IU/mL are typically significant for diagnosing an allergy.
- Symptom Correlation: Higher IgE levels often correlate with more severe allergic reactions.
- Clinical Use: Assists in diagnosis, allergen identification, monitoring sensitization, and identifying cross-reactivity.
- Management: Results guide treatment plans, including immunotherapy and exposure reduction strategies.

Price of test:£34

The lowest price from the last 30 days: £34

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