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HDM: D.pteronyssinus IgG

HDM: D.pteronyssinus IgG

The laboratory test for IgE antibodies against *Dermatophagoides farinae* (house dust mite) is essential for diagnosing allergies related to this common allergen. It identifies specific IgE antibodies in a patient's serum, confirming sensitization and aiding in allergy management. The test is particularly useful before initiating immunotherapy and for understanding allergic reactions to other allergens.

The procedure involves collecting a blood sample, preparing the serum, and using an Enzyme-Linked Immunoassay (ELISA) to detect IgE antibodies. The ELISA method is sensitive and specific, involving the binding of IgE to *D. farinae* allergens on a plate, followed by a colorimetric reaction to quantify IgE levels. Results are expressed in kU/L and classified into different classes, indicating the severity of the immune response.

Clinically, this test confirms house dust mite allergies, guides immunotherapy, and monitors allergic reactions. Despite potential limitations like false positives and variability, the ELISA test remains a reliable tool for managing *D. farinae* allergies.

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 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 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 by binding to *D. farinae* allergen.
- Result Interpretation: IgE levels indicate allergy severity.

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

Who Should Get Tested

The IgG antibody test for Dermatophagoides pteronyssinus is essential for diagnosing allergies to house dust mites. It identifies individuals who have developed IgG antibodies, indicating exposure to this common allergen. The test involves:

- Collecting a serum sample.
- Coating a plate with D. pteronyssinus extract.
- Blocking non-specific binding.
- Adding serum to detect IgG antibodies.
- Developing color to measure antibody levels.

Results are interpreted alongside clinical symptoms. A positive result suggests exposure but not necessarily an allergic reaction. This test aids in allergy diagnosis, monitoring immunotherapy, and assessing respiratory allergy risks.

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 IgE antibodies against *Dermatophagoides farinae* is essential for effective allergy management. Here's a concise guide:

- Purpose: Identifies immune response to house dust mites, aiding in allergy diagnosis and treatment planning.
- Procedure: Involves blood sample collection, serum preparation, and ELISA testing to detect IgE levels.
- Interpretation: Higher IgE levels suggest stronger allergic reactions, classified from Class 1 (low) to Class 6 (high).
- Clinical Significance: Confirms diagnosis, guides immunotherapy, and monitors allergic reactions.
- Limitations: Consider false positives and variability; interpret results in clinical context.

Price of test:£34

The lowest price from the last 30 days: £34

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