Allergy, Lettuce: Booking, Price, and Results
About Allergy, Lettuce: Booking, Price, and Results
| Field | Value |
|---|---|
| Also Known As | Lettuce IgE Test, Lettuce Allergen-Specific IgE, Lettuce f215 IgE, Lactuca sativa Allergy Test |
| Sample Type | Serum (venous blood) |
| Fasting Required | No |
| Report Time | 3 Days |
| Recommended For | All ages, both genders |
| Price | Starting at ₹1,300 |
What Is an Allergy Lettuce Test?
The allergy lettuce test measures the level of immunoglobulin E (IgE) antibodies specific to lettuce proteins in your blood. IgE antibodies are produced by the immune system when it reacts to a substance it considers harmful. A doctor may order this test when a patient reports symptoms after eating lettuce or related foods. The sample used is a small amount of venous blood drawn from the arm.
What Does a Lettuce Allergy Test Measure?
This test looks at one key marker in your blood. Here is what it checks:
| Parameter | What It Indicates |
|---|---|
| Lettuce-specific IgE antibodies | Whether your immune system has produced IgE in response to proteins found in lettuce (Lactuca sativa) |
A raised level of lettuce-specific IgE suggests that your immune system has been sensitised to lettuce. Results are reported by grade, ranging from Grade 0 (negative) through to Grade 6 (very high positive), based on the concentration measured in kUA/L.
Why Is an Allergy Lettuce Test Done?
Doctors order the allergy lettuce test when a patient's symptoms point to a possible food allergy, particularly one triggered by lettuce ingestion. The test helps identify the cause of an allergic reaction.
Common Symptoms That May Require This Test
The following symptoms may lead a doctor to recommend this test:
- Itching or tingling in the mouth after eating lettuce
- Skin rashes or hives following lettuce consumption
- Swelling of the lips, face, or throat
- Digestive discomfort such as nausea or stomach pain
- Sudden whole-body allergic reactions after eating
Conditions This Test Can Help Detect
This test can help in the following situations:
- Confirming a diagnosis of lettuce allergy
- Identifying the specific allergen responsible for a patient's symptoms
- Investigating reactions after lettuce ingestion, including skin and mucous membrane responses
- Confirming sensitisation before a doctor considers immunotherapy
How to Prepare and What to Expect
Preparation for the allergy lettuce test is straightforward. No special steps are needed before your appointment.
Do You Need to Fast?
No fasting is required. You can eat and drink normally before the test. There are no dietary restrictions specific to this blood test.
Practical Tips Before Your Test
Keep the following in mind before your test:
- Bring a detailed clinical history, including your symptoms, previous test results, and any known allergic reactions, as this is required for the test.
- Inform the collecting staff about any antihistamines or other medicines you are currently taking, as some medicines may need to be discussed with your doctor before testing.
- Do not stop any medication without your doctor's advice.
- Stay well-hydrated before the blood draw, as this makes vein access easier.
- Let the staff know if you have had a recent allergic reaction.
Step-by-Step Procedure
The sample collection process involves the following steps:
- A trained phlebotomist cleans the skin on your arm with an antiseptic wipe.
- A small needle is inserted into a vein in your arm to draw a blood sample.
- The blood is collected into a gel tube, and the needle is removed.
- A small bandage is placed over the puncture site.
- The sample is stored under refrigeration (2 to 8 degrees Celsius) and sent to the laboratory.
- The test is processed using the FEIA (Fluorescent Enzyme Immunoassay) method, and results are made available digitally within three days.
Factors That Can Affect Accuracy
The following factors may influence your test result:
- Very high total IgE levels (above 2,500 kU/L) may occasionally cause a false positive result.
- The choice of allergens tested may be influenced by your age, exposure history, and clinical symptoms.
- Previous sensitisation to related allergens (such as peach or mugwort pollen) can affect interpretation.
Understanding Your Allergy: Lettuce Test Results
Your results will show the level of lettuce-specific IgE in your blood, reported in kUA/L. The table below shows how results are classified by grade.
| Grade | IgE Level (kUA/L) | Interpretation |
|---|---|---|
| 0 | Less than 0.35 | Negative |
| 1 | 0.35 to 0.70 | Weak positive |
| 2 | 0.70 to 3.5 | Positive |
| 3 | 3.5 to 17.5 | Positive |
| 4 | 17.5 to 52.5 | Strong positive |
| 5 | 52.5 to 100 | Strong positive |
| 6 | Greater than 100 | Strong 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 conditions can affect how results are interpreted:
- Patients with Lipid Transfer Protein (LTP) syndrome may show cross-reactive IgE responses. Lettuce contains an LTP allergen (Lacs 1) that shares structural similarities with proteins found in peach, cherry, walnut, and peanut. A positive result may therefore reflect sensitivity to related foods or pollens rather than lettuce alone.
- Patients with pollen-food syndrome, particularly those sensitised to mugwort or London plane tree pollen, may also show a positive lettuce IgE result due to cross-reactivity.
How to Maintain Healthy Levels
The following general steps may be helpful after receiving your results:
- Keep a food diary to track which foods trigger your symptoms, helping your doctor identify patterns.
- If lettuce allergy is confirmed, avoid lettuce and any dishes that may contain it as an ingredient.
- Speak with your doctor about a broader allergy assessment if you react to multiple foods or pollen.
Lupin Diagnostics Allergy, Lettuce Test Price and Home Collection
The allergy lettuce test is available at Lupin Diagnostics starting at ₹1,300, with home sample collection offered across cities. The table below lists indicative prices by city.
| 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.
Home Collection
Lupin Diagnostics offers home sample collection for the allergy lettuce test across multiple cities. All samples are processed in NABL-accredited laboratories by qualified professionals. Your digital report is delivered securely via email or WhatsApp once ready.
How to Book
Follow these steps to book your allergy lettuce test:
- 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.
Frequently Asked Questions
The allergy lettuce test measures IgE antibodies in your blood that are specific to proteins found in lettuce. It helps a doctor confirm whether your immune system reacts to lettuce and supports decisions about dietary management. The test is conducted on a blood sample and is available at Lupin Diagnostics with home collection.
No fasting is needed. You can eat and drink as usual before your appointment. There are no specific dietary restrictions before this blood test.
A small blood sample is drawn from a vein in your arm. The collection takes only a few minutes and is performed by a trained phlebotomist. The sample is stored under refrigeration and dispatched to the laboratory for analysis.
Results for the allergy lettuce test at Lupin Diagnostics are typically available within three days. Your report will be sent digitally via email or WhatsApp.
Not always. IgE levels below 0.10 kUA/L do not entirely exclude the possibility of an allergic reaction, as this test reflects past sensitisation rather than predicting future responses. Your doctor will consider the result alongside your symptoms and clinical history.
Yes, it can be. Lettuce contains an LTP allergen that cross-reacts with proteins from peach, cherry, walnut, peanut, mugwort, and chestnut. People with pollen allergies, particularly to mugwort or the London plane tree, may also test positive for lettuce IgE. Your doctor can advise on further allergen testing if needed.
Lettuce allergy is uncommon, with relatively few documented cases worldwide. When it does occur, symptoms can range from mild oral itching to more significant reactions. The allergy lettuce test procedure helps establish whether a genuine IgE-mediated sensitivity is present so that appropriate steps can be taken.
Allergy, Lettuce: Booking, Price, and Results
