Allergy, Pecan Nut Test: Booking, Price, and Results
About Allergy, Pecan Nut Test
| Field | Value |
|---|---|
| Also Known As | Pecan Nut IgE Test, Pecan Allergy IgE Blood Test, Allergen-Specific IgE Pecan, f201 Pecan Nut IgE |
| Sample Type | Serum (venous blood) |
| Fasting Required | No fasting required |
| Report Time | 3 days |
| Recommended For | All ages, both genders |
| Price | Starting at ₹1,300 |
What Is an Allergy, Pecan Nut Test?
The Allergy, Pecan Nut Test is a blood test that measures the level of pecan-specific IgE (immunoglobulin E) antibodies in your blood. IgE antibodies are proteins your immune system produces when it mistakenly treats a substance, in this case pecan proteins, as a threat. A doctor may order this test when a patient reports symptoms after eating pecans or other tree nuts. It is also known as the Pecan Nut IgE Test or the Pecan Allergy IgE Blood Test.
What Does an Allergy, Pecan Nut Test Measure?
This test analyses a single parameter in your blood sample. The table below explains what it detects.
| Parameter | What It Shows |
|---|---|
| Pecan-specific IgE antibodies | The level of IgE antibodies your immune system has produced in response to pecan proteins. A raised level suggests your immune system is sensitised to pecans. |
The method used by Lupin Diagnostics for this test is FEIA (Fluorescent Enzyme Immunoassay), a well-established technique for detecting allergen-specific IgE in blood samples.
Why Is an Allergy, Pecan Nut Test Done?
A doctor may recommend this test for several reasons, from confirming a suspected nut allergy to planning further care.
Common Symptoms That May Require This Test
The following symptoms, especially when they appear after eating pecans or pecan-containing foods, may prompt a doctor to order this test:
- Itching or tingling in the mouth, tongue, or throat
- Hives or a raised, itchy rash on the skin
- Swelling of the lips, face, or area around the eyes
- Nausea, stomach pain, vomiting, or diarrhoea
- Difficulty breathing or tightness in the chest
- Swelling of the face or throat
Conditions This Test Can Help Detect
This test helps identify and confirm a range of allergy-related concerns. Below are the conditions it can assist in detecting:
- An IgE-mediated allergy to pecan nuts
- The specific allergen responsible for allergic symptoms or a previous allergic episode
- Sensitisation to pecan proteins before starting allergen immunotherapy
- Possible cross-reactivity with other tree nuts, particularly walnuts
How to Prepare and What to Expect
No complex preparation is needed for this test. The following sections explain what to do before and during sample collection.
Do You Need to Fast?
No, fasting is not required. You can eat and drink as normal before the test. Your meal choices do not affect the result.
Practical Tips Before Your Test
- Bring a detailed clinical history including your symptoms, previous test results, and relevant medical background, as this is required for the test.
- Inform the phlebotomist or lab staff if you are currently receiving allergen immunotherapy.
- Let the collecting staff know about all medications and supplements you are taking, including antihistamines, as some may need to be paused before testing (discuss this with your doctor first).
- Wear a loose-fitting top or a top with sleeves that can be rolled up easily to allow easy access to your arm.
- Stay well hydrated, as this makes the blood draw more straightforward.
Step-by-Step Procedure
The sample collection process is quick and straightforward. Here is what to expect:
- A trained phlebotomist cleans a small area on your arm with an antiseptic wipe.
- A fine needle is gently inserted into a vein, usually in the crook of your elbow.
- A small blood sample (approximately 3 ml) is drawn into a yellow-top gel tube.
- You may feel a brief, mild sting when the needle goes in. Most people find it very quick.
- Once the sample is collected, the needle is removed and a small bandage is applied to the site.
- The sealed sample is stored at the correct refrigerated temperature and sent to the Lupin Diagnostics laboratory for analysis.
Factors That Can Affect Accuracy
Several factors may influence the accuracy of your Pecan Allergy IgE Blood Test result:
- Recent use of antihistamines or other medications that affect immune response
- Ongoing allergen immunotherapy treatment
- A markedly elevated total serum IgE level (above 2,500 kU/L), which may produce a false-positive result
- The timing of the blood draw in relation to your most recent exposure to the allergen
Understanding Your Allergy, Pecan Nut Test Results
Your doctor will review your result alongside your symptoms and medical history. The table below shows the reference ranges used to classify pecan-specific IgE levels.
| IgE Level (kU/L) | Class | Interpretation |
|---|---|---|
| Less than 0.10 | 0 | Undetectable |
| 0.10 to 0.34 | 0 to 1 | Very low level |
| 0.35 to 0.69 | 1 | Low level |
| 0.70 to 3.49 | 2 | Moderate level (flags as high) |
| 3.50 to 17.4 | 3 | High level |
| 17.5 to 49.9 | 4 | Very high level |
| 50 to 100 | 5 | Very high level |
| Greater than 100 | 6 | Very high level |
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
A result of 0.70 kU/L or above (Class 2 and above) is considered 'raised'. Results below 0.35 kU/L generally indicate no significant sensitisation to pecan proteins.
Results During Special Conditions
- Some individuals may show measurable IgE levels without experiencing clear clinical symptoms. This is known as sensitisation without clinical allergy, and the result should always be read in context with your symptoms and history.
- A raised IgE level confirms sensitisation to pecan proteins, but it does not predict how severe a reaction may be. Clinical assessment by your doctor remains essential.
- Research shows strong cross-reactivity between walnuts and pecans. Nearly 80% of walnut-allergic patients studied were also found to be allergic to pecans, which your doctor may consider when reviewing your result.
How to Maintain Healthy Levels
If your result confirms a pecan allergy, the following general steps can help you manage your daily life safely:
- Avoid pecan nuts and any food products that contain them. Check ingredient labels carefully, including for terms such as "mixed nuts" or "tree nuts".
- Be aware that pecan proteins may also appear in processed snacks, baked goods, and salad dressings.
- Discuss an emergency action plan with your doctor if you are at risk of a severe reaction.
Lupin Diagnostics Allergy, Pecan Nut Test Price and Home Collection
The Allergy, Pecan Nut test cost at Lupin Diagnostics starts at ₹1,300, and home sample collection is available across multiple cities in India.
| City | Approximate Price (₹) |
|---|---|
| BHOPAL | 1300 |
| CHENNAI | 1300 |
| HYDERABAD | 1300 |
| KOLKATA | 1300 |
| NAVI MUMBAI | 1300 |
| PUNE | 1300 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred time slot.
- Opt for home sample collection by a certified phlebotomist, or visit your nearest Lupin Diagnostics centre.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Home Collection
Lupin Diagnostics offers Allergy, Pecan Nut Test home collection across cities in India, so you can have your blood sample taken at a time and place that suits you. All samples are processed in NABL-accredited laboratories by trained professionals. Your digital report is delivered securely via email or WhatsApp once it is ready.
Frequently Asked Questions
This test measures pecan-specific IgE antibodies in your blood to find out whether your immune system is sensitised to pecan proteins. Doctors use it to confirm a suspected pecan allergy, identify the allergen behind allergic symptoms, or check sensitisation before starting immunotherapy.
No, fasting is not required. You can eat and drink as you normally would before the test. No special dietary preparation is needed.
Reports are typically ready within 3 days of sample collection. Lupin Diagnostics delivers your report digitally via email or WhatsApp.
Yes, this is possible. Pecans and walnuts are closely related tree nuts with strong cross-reactivity, meaning many people allergic to one are also sensitive to the other. Your doctor may recommend testing for other tree nuts as well.
Not necessarily. A raised IgE level confirms that your immune system is sensitised to pecan proteins, but it does not predict the severity of a future reaction. Clinical assessment by your doctor is needed to understand your individual risk.
Yes, this test is suitable for all ages. Unlike some childhood food allergies, tree nut allergies tend to persist into adulthood. Research suggests that only around 9% of children with tree nut allergies outgrow them over time.
Bring a detailed clinical history, including your symptoms and any previous allergy test results. Let the lab staff know if you are currently on antihistamines or receiving immunotherapy, as these may affect how your result is interpreted.
Allergy, Pecan Nut Test: Booking, Price, and Results
