Allergy, Grape Test: Booking, Price, and Results
About Allergy, Grape Test: Booking, Price, and Results
| Field | Value |
|---|---|
| Also Known As | Grape IgE Test, Grape Specific IgE, Vitis vinifera Allergy Test, f259 Grape IgE |
| Sample Type | Serum (venous blood) |
| Fasting Required | No fasting required |
| Report Time | 3 days |
| Recommended For | All ages; anyone experiencing allergic symptoms after consuming grapes or grape products |
| Price | Starting at ₹1,300 |
What is an Allergy, Grape Test?
The Allergy, Grape test is a blood test that measures the level of grape-specific IgE antibodies in your blood. IgE (Immunoglobulin E) is a protein your immune system produces when it reacts to substances it identifies as harmful. Doctors order this test when a patient reports allergic symptoms after consuming grapes, wine, raisins, or other grape-containing products. It is also known as the Grape IgE Test or the Vitis vinifera Allergy Test.
What Does an Allergy, Grape Test Measure?
This test analyses two key aspects of your immune response to grapes.
| Component | What it Tells You |
|---|---|
| Grape-specific IgE antibodies | Measures IgE levels your body produces in response to grape allergens |
| Allergen protein reactivity | Detects reactivity to grape proteins, including the lipid transfer protein Vit v 1 |
A higher level of grape-specific IgE generally indicates a greater likelihood that grapes are causing your allergic symptoms.
Why is an Allergy, Grape Test Done?
An Allergy, Grape test helps doctors identify whether grapes are responsible for allergic symptoms a patient is experiencing. Below are the main reasons a doctor may recommend this test.
Common Symptoms That May Require This Test
Your doctor may suggest this test if you experience any of the following symptoms after eating grapes or grape-derived products:
- Hives or skin rash
- Itching or tingling in the mouth (oral allergy syndrome)
- Swelling of the lips, face, or throat (angioedema)
- Stomach discomfort, nausea, or abdominal pain
- Runny nose or sneezing (rhinitis)
- Breathing difficulties or asthma-like symptoms
- Widespread urticaria (generalised hives across the body)
Conditions This Test Can Help Detect
The Grape Allergy IgE test can support the diagnosis of several conditions. These include:
- IgE-mediated grape allergy
- Oral allergy syndrome triggered by grapes
- Atopic dermatitis with grape sensitisation
- Exercise-induced anaphylaxis after grape consumption (Food-Dependent Exercise-Induced Anaphylaxis)
- Angioedema linked to grape allergens
- Asthma or rhinitis triggered by grape exposure
How to Prepare and What to Expect
The Allergy, Grape test procedure is simple and requires no special preparation. Here is what you need to know before your appointment.
Do You Need to Fast?
No, fasting is not required before this test. You can eat and drink normally on the day of your test. There are no dietary restrictions unless your doctor gives you specific instructions otherwise.
Practical Tips Before Your Test
A little preparation helps ensure a smooth experience. Keep the following in mind:
- Bring a detailed clinical history, including your symptoms, previous test results, and any relevant medical records, as this is required for the test
- Inform your doctor about any medications you are taking, particularly antihistamines, as these may affect results
- Wear a loose-fitting top or short sleeves for easy access to your arm
- Stay well hydrated before your appointment
- Continue your regular diet unless your doctor advises otherwise
Step-by-Step Procedure
The blood collection for this test takes only a few minutes. Here is what to expect:
- A trained phlebotomist (blood collection specialist) will clean 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 amount of blood (approximately 3 ml) is drawn into a yellow-capped SST gel tube.
- The needle is removed, and a small bandage or cotton pad is applied to the site.
- Your blood sample is labelled and stored at refrigeration temperature (2 to 8 degrees Celsius) for transport.
- The sample is sent to a NABL-accredited Lupin Diagnostics laboratory, where it is analysed using the FEIA (Fluorescence Enzyme Immunoassay) method.
Factors That Can Affect Accuracy
Certain factors may influence your test results. Being aware of these helps your doctor interpret findings accurately:
- Markedly elevated total IgE levels (above 2,500 kU/L) can occasionally cause false-positive readings
- Antihistamine medications may interfere with test sensitivity
- Concurrent pollen allergies may cause cross-reactivity, particularly in oral allergy syndrome
- Atopic dermatitis (eczema) can be associated with high total IgE, making specific results harder to interpret
Understanding Your Allergy, Grape Test Results
Your results will show your grape-specific IgE level in kU/L, classified from Class 0 to Class 6. A doctor will review these findings alongside your symptoms and clinical history.
| Class | IgE Level (kU/L) | Interpretation |
|---|---|---|
| Class 0 | Less than 0.35 | Negative; no detectable sensitisation |
| Class 1 | 0.35 to 0.69 | Low positive; weak sensitisation |
| Class 2 | 0.70 to 3.49 | Moderate positive |
| Class 3 | 3.50 to 17.49 | High positive |
| Class 4 | 17.50 to 49.99 | Very high positive |
| Class 5 | 50.00 to 99.99 | Very high positive |
| Class 6 | 100.00 and above | Extremely high positive |
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.
Results During Special Conditions
Certain health conditions can affect how your results are interpreted:
- Patients with atopic dermatitis often have very high total IgE levels (above 1,000 kUA/L). In these cases, a positive specific IgE result may be a false positive and requires careful clinical review.
- Individuals with known pollen allergies may show cross-reactive IgE to grape proteins. This can indicate oral allergy syndrome rather than a true food allergy to grapes, and your doctor will distinguish between the two.
How to Maintain Healthy Levels
If you have been diagnosed with a grape allergy, the following general steps can help you manage your health:
- Keep a food diary to track what you eat and any symptoms that follow; this helps identify patterns and hidden grape ingredients in processed foods.
- Read product labels carefully, as grapes appear in wine, raisins, grape juice, vinegar, and many packaged foods.
- Discuss a personalised management plan with an allergist for guidance on avoidance and any follow-up testing.
Lupin Diagnostics Allergy, Grape Test Price and Home Collection
The Allergy, Grape 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 |
Disclaimer: Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
Booking your Allergy, Grape test online is quick and easy. Follow these steps:
- 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
Allergy, Grape test home collection is available across cities in India. A certified phlebotomist will visit your home at your chosen time to collect the blood sample. All samples are processed in NABL-accredited Lupin Diagnostics laboratories, and your digital report is accessible within 3 days of sample collection.
Frequently Asked Questions
The Allergy, Grape test is a blood test that checks for IgE antibodies specific to grape allergens. It helps doctors confirm whether grapes are the cause of allergic symptoms such as hives, swelling, or breathing difficulties. The test is sometimes called the Grape IgE test or f259 Grape IgE.
No, fasting is not required. You can eat and drink as normal before your appointment. However, do inform your doctor about any antihistamines or other medications you are taking, as these may affect your results.
You may need this test if you notice hives, itching or tingling in your mouth, facial swelling, abdominal discomfort, a runny nose, or breathing difficulties after eating grapes, drinking wine, or consuming raisins or grape juice.
Yes, this is possible. Some people develop oral allergy syndrome due to heat-sensitive grape proteins. Because these proteins break down during heating or pasteurisation, cooked grapes or pasteurised grape juice may not trigger a reaction in such individuals. Your doctor can advise you further based on your specific test results.
Not necessarily. The specific IgE level reflects the degree of sensitisation to grape allergens, not the severity of a potential reaction. Some people with high IgE levels may have mild symptoms, while others with lower levels may experience more noticeable reactions. Your doctor will interpret the result alongside your full clinical picture.
Yes. Research shows that people with a grape allergy are often also sensitised to other fruits such as apples, peaches, cherries, and bananas. This cross-reactivity is common and is one reason why sharing a complete dietary and symptom history with your allergist is important.
Yes, Allergy, Grape test home collection is available. A trained phlebotomist will visit your home to draw the blood sample at a time convenient for you. Remember to keep your clinical history and relevant medical records ready, as these are required for the test.
Allergy, Grape Test: Booking, Price, and Results
