Rapeseed Allergy Test in Chromepet, Chennai

Rapeseed Allergy Test (Specific IgE): Price, Purpose, Range & Reports

Test Overview

The Rapeseed Allergy Test measures the presence and concentration of specific Immunoglobulin E (IgE) antibodies in the blood that react to allergens found in Rapeseed (Brassica napus), also commonly known as Canola.
This test is essential for diagnosing Type I hypersensitivity (immediate) reactions, which can manifest as respiratory symptoms (allergic rhinitis, asthma), skin reactions, or, rarely, systemic reactions due to exposure to rapeseed pollen (aeroallergen) or the seed's protein components (food allergen).

What is the Rapeseed Allergy Test?

The immune system of an allergic individual produces specific IgE antibodies upon exposure to an allergen. This test measures these IgE levels against the rapeseed antigen. Doctors might recommend this test because

• Aeroallergen: Rapeseed pollen is a known aeroallergen, especially in agricultural regions where it is cultivated as oilseed rape. Inhalation can cause seasonal allergic rhinitis (hay fever) or asthma.
• Food Allergen: While refined rapeseed (Canola) oil typically contains very little protein, cold-pressed oils or mustard (a highly cross-reactive species in the same family, Brassicaceae) can cause food allergy symptoms. The major allergen, Bra n 1 (a storage protein), is stable and resistant to heat, posing a risk.
• Cross-Reactivity: A positive result can indicate cross-reactivity with other members of the cabbage family, including mustard, cabbage, broccoli, and turnip.

What is the Rapeseed Allergy Test Price?

The Rapeseed Allergy Test price reflects the specialised nature of the quantitative immunoassay used to measure a very low concentration of specific IgE antibodies. The final cost of your test is influenced by several elements:

• Technology Used: The test relies on automated, quantitative immunoassay analysers (like ImmunoCAP or similar platforms), which use highly sensitive detection methods to ensure an accurate measurement of IgE concentration in kiloUnits per litre (kU/L).
• Specialised Reagents: The cost includes the use of purified rapeseed allergen components necessary to isolate and measure the specific allergic response.
• Location: Prices may differ slightly between cities due to regional operating costs and logistics.
• Service Type: Opting for home sample collection may slightly adjust the total cost due to convenience and travel charges.
• Lab Accreditation: Tests conducted at NABL-accredited labs, such as those operated by Apollo 24|7, ensure high standards of accuracy and reliability, which are crucial for determining accurate sensitisation levels.

If you're trying to find the most accurate and affordable Rapeseed Allergy Test price near me, the easiest way is to check the Apollo 24|7 website or app. They update prices regularly based on your location, so you’ll always see the latest rates and any available offers.

What is the Purpose of the Rapeseed Allergy Test?

The primary purpose is to objectively identify and quantify sensitisation to rapeseed allergens in individuals exhibiting symptoms suggestive of an IgE-mediated allergy.

The test is typically ordered under the following circumstances:

• Unexplained Allergic Symptoms: For patients experiencing respiratory symptoms (sneezing, runny nose, congestion, wheezing) or skin symptoms (hives, eczema) that correlate with exposure to rapeseed pollen (often during flowering seasons).
• Cross-Reactivity Investigation: When a patient is allergic to mustard or other Brassicaceae foods, the test helps determine if there is co-sensitisation or cross-reactivity with rapeseed.
• Risk Assessment: To assess the risk of allergic reaction in individuals who consume cold-pressed rapeseed oil or work in environments exposed to rapeseed dust or pollen.
• When Skin Testing is Contraindicated: If a patient has extensive skin conditions (like eczema/dermatitis) or cannot stop taking antihistamines, a blood test is preferred over a skin prick test.

Who Should Get Rapeseed Allergy Test Done?

This test is generally recommended for individuals who exhibit symptoms of an IgE-mediated allergy, particularly if those symptoms correlate with known exposure to rapeseed. Specific populations include:

• Individuals with Seasonal Respiratory Symptoms: People who experience allergic rhinitis (hay fever) or asthma, especially when symptoms worsen during the spring and summer months when rapeseed is flowering and its pollen is active in the air.
• Agricultural and Industrial Workers: Those who work directly with rapeseed crops, or in processing facilities where they are exposed to high concentrations of seed dust or pollen.
• Patients with Existing Brassicaceae Allergies: Individuals already diagnosed with allergies to close relatives of rapeseed, such as mustard (the most common cross-reactor), cabbage, or broccoli, to check for cross-sensitisation.
• Patients with Unexplained Food-Related Symptoms: Although rare, if a patient reports immediate allergic reactions (e.g., hives, swelling, gastrointestinal issues) after consuming cold-pressed rapeseed oil or mustard products, this test is clinically relevant.
• Infants or Individuals with Severe Skin Conditions: For whom skin prick testing is difficult or unsafe, the blood IgE test serves as a safer, effective diagnostic alternative.

Components of the Rapeseed Allergy Test

This diagnostic test is designed to measure the immune system’s response to rapeseed exposure by quantifying allergen-specific IgE antibodies in the bloodstream.

The test is performed for:

• Rapeseed-specific IgE: This parameter detects and measures the concentration of IgE antibodies directed against rapeseed antigens. Elevated levels indicate sensitisation, which may be linked to respiratory symptoms from pollen inhalation or, less commonly, food-related reactions due to cross-reactivity with related plants in the Brassicaceae family.

Understanding the Rapeseed Allergy Test Report

The report provides a quantitative value for the specific IgE level to rapeseed, typically measured in kU/L (kiloUnits per Litre). This value is then categorised into an Allergy Class score.

Interpretation of Results

The key cutoff value for most labs is less than or equal to 0.34 kU/L:

Important Notes for Your Report:

• Sensitisation vs. Allergy: A positive test result (sensitisation) does not automatically mean a clinical allergy is present. Many people can test positive but never experience symptoms. A definitive diagnosis requires correlating the test result with the patient's history of symptoms upon exposure.
• Quantitative Value: The specific kU/L value is more informative than the Class score, as it provides a clear baseline for monitoring changes in sensitivity over time.

Preparation and Procedure for the Test

If you're planning to take the Rapeseed Allergy Test, here's what you need to know to make the process smooth and get the most accurate results.

1. What is the Procedure for the Rapeseed Allergy Test?

The Rapeseed Allergy Test requires a small blood sample, usually drawn from a vein in your arm by a trained phlebotomist. The sample is then processed in a laboratory to isolate the serum, which is analysed using a quantitative immunoassay to measure the specific IgE antibodies against the rf316 or w203 antigen.

2. Do I Need to Fast Before the Test?

Fasting is generally not required for this test. Since the measurement is of IgE antibodies, which are part of your immune system, food or drink intake does not affect the results. You can eat and drink normally before the procedure unless your doctor gives specific instructions.

3. When is the Best Time to Take the Test?

The test can be done at any time of the day. Unlike some tests that require morning collection for consistent baseline levels, this IgE blood test is not time-dependent. Your doctor may recommend a specific timing depending on your overall lab schedule.

4. Should I Inform My Doctor About Medications?

Yes. It is important to tell your doctor about any medications you are taking. While most medications do not interfere with the results of a blood IgE test, anti-allergy medications (antihistamines) are typically required to be stopped only for skin prick tests, but it is always best practice to inform your doctor about all prescription and over-the-counter drugs. Do not stop any prescribed medications without consulting your doctor.

5. How Often Should the Rapeseed Allergy Test Be Done?

This test is usually performed once for initial diagnosis. Repeat testing may be suggested by your doctor to monitor changes in your sensitisation level over several months or years, especially if lifestyle changes (like reduced occupational exposure) are implemented or if the patient is undergoing allergy desensitisation therapy.

Booking Rapeseed Allergy Test Online & Checking Reports

Apollo 24|7 simplifies the process of obtaining this important diagnostic test, allowing you to schedule your collection and access your results securely online, ensuring timely communication with your doctor.

A. What are the Steps to Schedule the Test on Apollo 24|7?

• Visit the Apollo 24|7 website or mobile application and search for the Rapeseed Allergy Test.
• Confirm the latest Rapeseed Allergy Test price for your city and click the 'Book Now' button.
• Select your preferred date and a convenient time slot for home collection.
• Complete the secure online payment. Confirmation details and preparation reminders will be sent instantly.

B. How Do I Access My Test Results Online on Apollo 24|7?

• Log in to your Apollo 24|7 account using your registered phone number or email.
• Navigate to the 'Health Records' or 'My Reports' section on the dashboard.
• Click on your completed test name to view the detailed report immediately.
• You can easily view the entire report online or download it in PDF format to share with your physician.

Conclusion

The Rapeseed Allergy Test is an important diagnostic tool for detecting IgE sensitisation to rapeseed, a common allergen found in both environmental and dietary sources. Whether symptoms arise from inhaling rapeseed pollen or, in rarer cases, from consuming related foods or oils, this test provides clear, quantitative data. The results help allergists accurately identify the trigger and develop a personalised management and avoidance strategy tailored to the patient’s specific sensitivities.