Allergy, Velvet Grass Test: Booking, Price, and Results
About Allergy, Velvet Grass Test: Booking, Price, and Results
| Field | Value |
|---|---|
| Also Known As | Velvet Grass IgE Test, Yorkshire Fog Allergy Test, Holcus lanatus Allergy Test, g13 Allergen Test |
| Sample Type | Serum (venous blood) |
| Fasting Required | No |
| Report Time | 3 Days |
| Recommended For | All ages; males and females experiencing seasonal allergy symptoms |
| Price | Starting at ₹1,400 |
What is an Allergy, Velvet Grass Test?
The Allergy, Velvet Grass test is a blood test that measures whether your immune system produces specific IgE (Immunoglobulin E) antibodies in response to Velvet Grass pollen. It is also known as the Velvet Grass IgE Test or Holcus lanatus Allergy Test. A doctor may prescribe this test when a patient reports seasonal allergy symptoms that could be linked to grass pollen exposure. A small blood sample is collected from a vein in the arm.
What Does an Allergy, Velvet Grass Test Measure?
This test measures the level of IgE antibodies your body produces specifically in response to Velvet Grass (Holcus lanatus) pollen. A higher level suggests greater sensitisation to this allergen. Four allergenic proteins have been identified in Velvet Grass pollen. Here is a brief overview of each:
| Allergen Protein | Type |
|---|---|
| Hol l 1 | Group 1 beta-expansin (major allergen) |
| Hol l 5 | Group 5 ribonuclease (major allergen) |
| Hol l 4 | Group 4 berberine bridge enzyme |
| Hol l 2 | Group 2 protein |
Why is an Allergy, Velvet Grass Test Done?
A doctor may order this test when a patient's symptoms point to a possible grass pollen allergy. Below are the key reasons this test is typically requested.
Common Symptoms That May Require This Test
The following symptoms are commonly associated with a grass pollen allergy and may prompt a doctor to recommend the Allergy, Velvet Grass test:
- Runny or stuffy nose
- Watery or red eyes
- Swelling or puffiness around the eyes
- Itchiness in the throat, nose, or eyes
- Cough or sore throat
- Wheezing or shortness of breath (particularly in those with asthma)
Conditions This Test Can Help Detect
This test can help identify sensitisation to Velvet Grass pollen and support the diagnosis of the following conditions:
- Allergic rhinitis (hay fever), a common condition triggered by grass pollen
- Allergic conjunctivitis, which causes eye inflammation in response to allergens
- Allergic asthma, particularly in children, where hay fever can act as a trigger
- Pollen-food allergy syndrome (also called oral allergy syndrome), where grass pollen proteins resemble those in certain fruits, vegetables, and nuts
How to Prepare and What to Expect
Preparation for the Allergy, Velvet Grass test procedure is straightforward. The following sections cover fasting, practical tips, the collection process, and factors that may affect your result.
Do You Need to Fast?
No, fasting is not required before this test. You may eat and drink normally on the day of your appointment. However, if other tests are being done at the same time, some of those may require fasting, so check with your doctor.
Practical Tips Before Your Test
Keep the following points in mind before attending your appointment:
- Bring a detailed clinical history, including your symptoms, previous test results, and any relevant medical records, as this is required for the test.
- Tell your doctor about all medications you are currently taking, especially antihistamines, as these can affect test results.
- Stay well hydrated before the blood draw.
- No dietary restrictions are needed.
- Wear a short-sleeved or loose-fitting top for easy access to the arm.
Step-by-Step Procedure
Here is what to expect during the Allergy, Velvet Grass test procedure:
- A trained phlebotomist will clean the inside of your elbow or forearm with an antiseptic wipe.
- An elastic band (tourniquet) is placed around the upper arm to make the vein easier to locate.
- A small needle is gently inserted into the vein, and approximately 3 ml of blood is collected into a sterile gel tube.
- The tourniquet is removed, and the needle is withdrawn.
- Light pressure is applied to the site, followed by a small bandage.
- The labelled sample is stored refrigerated and sent to the laboratory for testing using the FEIA (Fluorescent Enzyme Immunoassay) method.
Factors That Can Affect Accuracy
Several factors may influence the accuracy of your result:
- Recent use of antihistamine medications before the test
- Low levels of pollen exposure at the time of testing
- Presence of other medical conditions that affect IgE levels
- Improper sample handling or storage during transport
Understanding Your Allergy, Velvet Grass Test Results
Your results will show the level of specific IgE antibodies detected, expressed in kU/L and classified by grade. Always review your results with your doctor. The table below shows the standard reference ranges:
| Class | Specific IgE Level (kU/L) | Interpretation |
|---|---|---|
| 0 | Less than 0.35 | Negative (no detectable sensitisation) |
| 1 | 0.35 to 0.69 | Low positive (weak sensitisation) |
| 2 | 0.70 to 3.49 | Moderate positive |
| 3 | 3.50 to 17.49 | High positive |
| 4 | 17.50 to 49.99 | Very high positive |
| 5 | 50.00 to 99.99 | Very high positive |
| 6 | 100.00 or above | Very 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
A positive result means your immune system has been sensitised to Velvet Grass pollen. However, a raised IgE level does not always mean you will experience symptoms when exposed to the allergen, and the level does not predict how severe a reaction may be. In cases where an allergy has been outgrown, a positive specific IgE result may still be present.
How to Maintain Healthy Levels
These general wellness tips may help reduce pollen exposure during the grass season:
- Avoid outdoor activities during peak pollen periods, typically late spring and early summer.
- Keep windows closed during high pollen days and use air conditioning with appropriate filters where possible.
- Shower and change clothes after spending time outdoors to remove any pollen you may have brought indoors.
Lupin Diagnostics Allergy, Velvet Grass Test Price and Home Collection
The Allergy, Velvet Grass test cost at Lupin Diagnostics starts at ₹1,400, and home collection is available across cities. The table below provides city-wise pricing details:
| City | Approximate Price (₹) |
|---|---|
| BHOPAL | 1400 |
| CHENNAI | 1400 |
| HYDERABAD | 1400 |
| KOLKATA | 1400 |
| NAVI MUMBAI | 1400 |
| PUNE | 1400 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
Booking your Allergy, Velvet Grass test online at Lupin Diagnostics is simple:
- 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, Velvet Grass test home collection across multiple cities, allowing you to get your blood sample collected at a time and place that suits you. All samples are processed in NABL-accredited laboratories by qualified professionals. Your digital report is accessible via email or WhatsApp once ready.
Frequently Asked Questions
Velvet Grass (Holcus lanatus), also called Yorkshire fog, is a common perennial grass found in temperate regions, including parts of India. Its pollen contains proteins that can trigger an immune response in sensitive individuals. Studies suggest that a high proportion of people with seasonal allergic rhinitis test positive for Velvet Grass pollen sensitisation.
No fasting is needed before this test. You can eat and drink as normal. Your doctor may ask you to pause antihistamine medications before your appointment, as these can interfere with results.
The test involves a routine blood draw from a vein in your arm. You may feel mild discomfort when the needle is inserted, and there could be slight bruising at the site afterwards. This typically settles within a day or two.
Yes, this is possible. Velvet Grass allergen proteins, particularly Hol l 1 and Hol l 5, show a high degree of cross-reactivity with other grasses in the same subfamily, such as Timothy grass, Kentucky bluegrass, ryegrass, and orchard grass. Your doctor may recommend testing for additional grass pollens if your results and symptoms suggest this.
Yes, the Allergy, Velvet Grass test can be performed on patients of all ages, including young children and infants. It requires only a small blood sample collected from a vein in the arm.
Results are typically available within 3 days of the sample reaching the laboratory. You will receive your report digitally via email or WhatsApp.
A positive result indicates that your immune system is sensitised to Velvet Grass pollen. Your doctor will review this alongside your symptoms and health history. They may suggest pollen avoidance strategies, discuss suitable medications such as antihistamines or nasal sprays, or refer you to an allergy specialist for further assessment.
Allergy, Velvet Grass Test: Booking, Price, and Results
