Allergy, House Dust (Greer Labs Inc) Test: Booking, Price, and Results
About Allergy, House Dust (Greer Labs Inc) Test: Booking, Price, and Results
| Field | Value |
|---|---|
| Also Known As | House Dust IgE Test, House Dust (Greer) Allergy Test, Specific IgE House Dust Test, RAST House Dust |
| 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, House Dust (Greer Labs Inc) Test?
The Allergy, house dust (Greer Labs Inc) test is a specialised blood test that detects specific IgE antibodies (proteins made by the immune system in response to allergens) against house dust particles. Doctors order this test when a patient has persistent allergy symptoms that may be linked to indoor dust exposure. It is also known as the house dust IgE Test or Specific IgE house dust Test, and uses a serum sample drawn from a vein in the arm.
What Does an Allergy, House Dust (Greer Labs Inc) Test Measure?
This test measures the level of specific IgE antibodies your immune system produces against house dust allergens prepared using the Greer Labs extract. House dust is a mixture of substances found in the home environment. The results are reported across a graded scale to indicate the strength of any allergic response.
The single parameter measured in this test is outlined below.
| Parameter | What it Represents |
|---|---|
| Specific IgE to House Dust (Greer Labs) | The level of immune antibodies directed against house dust, which may include fabric fibres, bacteria, fungi, and human skin cells |
Why is an Allergy, House Dust (Greer Labs Inc) Test Done?
This test is ordered when a doctor suspects that a patient's allergy symptoms are triggered or worsened by exposure to house dust. It helps confirm sensitisation and can also guide decisions about allergy desensitisation treatment (immunotherapy).
Common Symptoms That May Require This Test
Your doctor may recommend the Allergy, house dust test if you experience any of the following symptoms:
- Frequent sneezing or a persistently runny or blocked nose
- Itching of the nose, throat, or mouth
- Postnasal drip (mucus running down the back of your throat)
- Red, watery, or itchy eyes
- Cough or wheezing
- Itchy skin or worsening eczema
- Fatigue without a clear cause
Conditions This Test Can Help Detect
The House dust (Greer Labs Inc) allergy test can help identify or support the diagnosis of the following conditions:
- Allergic asthma (asthma triggered by allergens)
- Perennial allergic rhinitis (year-round hay fever-type symptoms)
- Allergic conjunctivitis (eye inflammation caused by an allergic reaction)
- Eczema aggravated by house dust exposure
How to Prepare and What to Expect
No special preparation is needed for this test. The following sections explain what you should know before and during your appointment.
Do You Need to Fast?
No, fasting is not required. You can eat and drink as normal before the blood draw. There are no restrictions on food or water intake for this test.
Practical Tips Before Your Test
Keep the following points in mind before going for your Allergy, house dust test:
- Bring a detailed clinical history, including your symptoms, previous test results, and any known allergies, as this is required for the test.
- Inform your doctor about all medications and supplements you are currently taking, particularly antihistamines or corticosteroids, as some may affect results.
- Do not stop any medication on your own unless your doctor specifically advises you to.
- Drink enough water before the blood draw to make vein access easier.
- Wear clothing with sleeves that can be rolled up easily for a comfortable blood collection experience.
Step-by-Step Procedure
Here is what happens during the sample collection for this test:
- A trained phlebotomist (a person who draws blood) will clean a small area on your arm with an antiseptic swab.
- A 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 tube. You may feel a brief sting; the entire process takes under five minutes.
- The needle is removed, and a small bandage is placed on the site.
- The blood sample is processed to separate serum (the liquid portion of the blood) and stored at the correct temperature for transport.
- The sample is dispatched to the laboratory, where it is analysed using the FEIA (fluorescence enzyme immunoassay) method.
Factors That Can Affect Accuracy
Several factors can influence the accuracy of your House dust (Greer Labs Inc) test result:
- Antihistamines or corticosteroids taken around the time of the test
- Very high total IgE levels in the blood (above 2,500 kU/L), which can produce misleading results
- Recent or heavy exposure to allergens before sample collection
- Parasitic infections or certain immune system disorders
- The specific test kit and allergen extract quality used by the laboratory
Understanding Your Allergy, House Dust (Greer Labs Inc) Test Results
Your results are reported as a numeric IgE level in kU/L and are grouped into classes from 0 (negative) to 6 (very strong positive). Always review your report with a qualified doctor who can interpret it in the context of your full medical history and symptoms.
| Class | IgE Level (kU/L) | Interpretation |
|---|---|---|
| Class 0 | Less than 0.35 | Negative (no detectable sensitisation) |
| Class 1 | 0.35 to 0.70 | Weak positive |
| Class 2 | 0.70 to 3.50 | Positive |
| Class 3 | 3.50 to 17.50 | Positive |
| Class 4 | 17.50 to 52.50 | Strong positive |
| Class 5 | 52.50 to 100 | Strong positive |
| Class 6 | Greater than 100 | Very strong positive |
Results at Class 2 (0.70 kU/L or above) are considered abnormally elevated. A negative result does not always rule out an allergy, and a positive result must be reviewed alongside your clinical symptoms.
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 your result should be read:
- Patients with very high total IgE levels (above 2,500 kU/L) may show false-positive results for specific IgE antibodies.
- A positive IgE result does not always mean house dust is currently causing your symptoms. In some cases, people retain a positive result even after outgrowing an allergy.
- Parasitic infections and certain immune disorders can raise total IgE levels in a non-specific way, which may complicate interpretation.
How to Maintain Healthy Levels
While these are general environmental management tips and not treatment advice, reducing exposure to house dust allergens may help support your overall well-being:
- Use allergen-proof covers on mattresses, pillows, and duvets to reduce dust accumulation.
- Wash bedding at 60°C regularly to eliminate dust mites that live within household dust.
- Clean surfaces with a damp cloth each week and vacuum using a HEPA filter vacuum. The person with a dust sensitivity should leave the room during cleaning, as dust levels in the air rise significantly during this process.
Lupin Diagnostics Allergy, House Dust (Greer Labs Inc) Test Price and Home Collection
The Allergy, house dust (Greer Labs Inc) test is available at Lupin Diagnostics starting at ₹1,300, with home sample collection offered 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
Follow these steps to book your Allergy, house dust test online:
- 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
The Allergy, house dust test home collection service is available across cities through Lupin Diagnostics. A trained phlebotomist visits your home at your chosen time to collect the blood sample. All samples are processed in NABL-accredited laboratories, and your digital report is delivered directly to you.
Frequently Asked Questions
This test detects specific IgE antibodies against house dust allergens prepared from a Greer Labs extract. It is used to confirm whether house dust is causing or contributing to symptoms such as sneezing, itchy eyes, coughing, or skin reactions. The result helps guide allergy management and, in some cases, decisions about immunotherapy.
House dust is a mixture of substances commonly found in homes, including fabric fibres, bacteria, fungi, and human skin cells. House dust mites are microscopic insects that live within this dust and are considered a separate allergen. This test specifically measures the immune response to the house dust extract used by Greer Labs, not to mite allergens directly.
Do not stop any medication without consulting your doctor first. However, inform your doctor about all medicines you are taking, especially antihistamines and corticosteroids, as they may influence the result. Your doctor will advise you on whether any changes are needed before the test.
A negative result (below 0.35 kU/L) suggests no detectable IgE sensitisation to house dust at the time of testing. However, if symptoms persist, your doctor may investigate other possible allergens or environmental triggers, as allergy symptoms can have multiple causes.
A positive result indicates that your immune system has produced IgE antibodies in response to house dust. This suggests sensitisation to house dust allergens. The level does not directly predict how severe your symptoms will be. Your doctor will interpret the result alongside your clinical history.
Reports for the Allergy, house dust (Greer Labs Inc) test are typically available within 3 days of sample collection. You will receive your digital report via email or WhatsApp once it is ready.
The test involves a routine blood draw, which most people experience as only mildly uncomfortable. A brief sting may occur when the needle is inserted. The sample collection takes only a few minutes, and a small bandage is applied afterward.
Allergy, House Dust (Greer Labs Inc) Test: Booking, Price, and Results
