Preventive Health System

What is an Allergy? How are Allergy Tested?

Last updated on January 27th, 2023 at 03:10 pm

An allergy is when your immune system overreacts to something harmless. When you have an allergic reaction, your body produces antibodies that attack the substance, causing the problem. Do you suffer from allergies? Read on to find out why you should be concerned!

What is an Allergy?

An allergic reaction occurs when an allergen-specific antibody called immunoglobulin E (IgE), which is produced by the immune system and binds to cells in the body (mast cells), comes into contact with the specific allergen for which it was produced.

Allergy test

Allergens cause the immune system, specifically white blood cells, to produce IgE antibodies that attach themselves to mast cells or basophils. The allergen attaches to specific IgE antibodies on the surface of the mast cell, and when the allergen and the IgE antibodies combine, the release of histamine (the substance that dilates blood vessels) and other chemicals is triggered, causing allergy symptoms.

Allergies are linked to serious respiratory illness such as allergic rhinitis, sinusitis, and asthma, and severe allergies can cause a life-threatening condition called anaphylaxis.

Comprehensive Allergy Test Packages in Pune

Allergy test cost in Pune

An allergy test is used to determine if you have allergies or not. Find out more about what they do and why you should get done.

9 Allergy symptoms

  1. Congestion
  2. Coughing
  3. Eczema (atopic dermatitis, contact dermatitis)
  4. Fatigue
  5. Hives (urticaria) and or swelling (angioedema)
  6. Itching
  7. Itchy, watery eyes (allergic conjunctivitis)
  8. A runny nose, sneezing
  9. Shortness of breath, chest tightness, wheezing

Before further proceeding, care for your health and evaluate frequently with our HAP67 package.

Allergists/immunologists are physicians specially trained to diagnose and treat allergies. If an allergy is suspected, the physician may ask the patient to keep a record of when, where, and under what circumstances the symptoms occur. To help diagnose an allergy, the allergist/immunologist takes a medical and family history (allergies often run in families) and performs a physical examination and diagnostic tests. A medical history includes information about symptoms (e.g., where and when they occur) and information about the patient’s home, work, and school environment.

During the physical examination, the allergist/immunologist examines the ears, eyes, nose, throat, skin, and lungs. Sometimes, a pulmonary function test is performed to determine how well the patient can expel air from the lungs.

Types of Allergy Testing

Discover what an allergy is, and why they happen. Discover the best ways to treat allergies and keep yourself healthy.

Skin Tests

Skin tests often are used to diagnose allergies. These tests involve minor discomfort and take about 30 minutes to perform. An allergist/immunologist interprets the results of the test with the patient’s history and uses these results to determine the best course of treatment. Treatment may include medications and allergy shots (immunotherapy).

Prior to allergy skin tests, a positive histamine control test and a negative saline control test may be performed. A positive control test is used to determine if the patient reacts to histamine. If the patient does not immediately react to histamine, the results of allergy skin tests can be difficult to interpret. A negative control test involves applying a saline solution that does not include any allergens. Patients who react to this solution may have skin that is too sensitive to allow correct interpretation of allergy skin tests.

There are two types of skin tests: prick tests and intradermal (i.e., under the skin) tests. Prick tests involve placing small drops of common allergens on the skin (usually on the forearms or back) and then lightly pricking the skin through the drop with a small needle. Intradermal tests involve injecting a small amount of allergen into the outer layer of skin. When a patient is allergic to a substance, redness, itching, and swelling develop at the site of the test within 20 minutes. After the test, a mild cortisone cream may reduce itching.

Patch Tests

Patch tests can diagnose contact dermatitis. In this test, the allergist/immunologist places a small amount of allergen on the skin (usually on the back), covers the area with a bandage, and checks for a reaction after 48–72 hours. Patients who are allergic to the substance develop a rash, or even blisters, on the skin.

Certain medications (e.g., antihistamines, antidepressants) and skin conditions (e.g., eczema) can interfere with allergy skin tests. Patients who must continue to take these medications and patients who have a severe skin condition may require a blood test to diagnose allergies.

Allergy Blood Tests

Allergy blood tests involve taking a blood sample, adding an allergen to the sample, and measuring the amount of immunoglobulin E (IgE) antibodies produced in response to the allergen. Types of allergy blood tests include the following.

  • Enzyme-linked immunosorbent assay (ELISA)
  • In vitro basophil histamine release assay
  • Radioallergosorbent test (RAST)

Allergy blood tests, which are less sensitive and more expensive than skin tests, are usually reserved for rare cases when allergy skin tests may not be accurate (e.g., when the patient has sensitive skin that reacts to a saline prick test or has a skin condition, such as hives or eczema, that prevents an adequate field for skin tests).

healthcare nt sickcare, we offer various tests segments in their complete allergy package;

Food Allergies

Besides to allergy skin tests and allergy blood tests, patients with a suspected food allergy may undergo food allergy tests. Food allergy testing often begins with keeping a food diary, which is a detailed list of all foods, the date and time they were eaten, and any symptoms that occurred.

When a single food allergy is suspected, the patient may be advised to eliminate the food from the diet and then, if symptoms are relieved, add the food back to the diet to determine if an allergic reaction occurs. This allergy test is not used in patients with a history of a severe allergic reaction (anaphylaxis).

If the results are inconclusive, the allergist/immunologist may perform a “blinded” food allergy test and/or a challenge test. These tests usually are performed in a physician’s office or in the hospital, and they are closely supervised.

They involve feeding the patient either the suspected food, or a neutral food (called a placebo), and then monitoring the patient for an allergic reaction. Neither the patient nor the physician knows whether the suspected food or the placebo is being given to the patient. The results are very reliable.

Contact Allergies

Have you ever used a new type of skincare product or detergent, only to have your skin become red and irritated? If so, you may have experienced contact dermatitis. This condition occurs when chemicals you come into contact with cause a reaction.

Allergic contact dermatitis occurs when the skin develops an allergic reaction after being exposed to a foreign substance. This causes the body to release inflammatory chemicals that can make the skin feel itchy and irritated.

Drug Allergies

A drug allergy is an allergic reaction to a medication. With an allergic reaction, your immune system, which fights infection and disease, reacts to the drug. This reaction can cause symptoms such as rash, fever, and trouble breathing.

True drug allergy is not common. Less than 5 to 10 percent of negative drug reactions are caused by a genuine drug allergy. The rest are side effects of the drug. All the same, it’s important to know if you have a drug allergy and what to do about it.

Inhalant Allergies

Red irritated eyes, constant sneezing, runny nose are common symptoms of inhalant allergies. Typical inhalant allergens are pollens from grasses, trees and weeds, mold spores, pet dander, and dust mites.

At healthcare nt sickcare, you can choose any of the above allergy testing segments according to your doctor’s prescription or past allergy medical history. Give a miscall to +919015159497 or Visit Our FAQ Page.

  1. How much does it cost to get an allergy test in Pune?

    Blood allergy test cost ₹ 2999 – ₹ 5999 depending blood allergy test panel your opt. e.g. Drug, Food, Complete

  2. How I can opt right allergy test for me?

    You can consult to your doctor before undergoing allergy test and also have to confirm the allergy with Total IgE test if you opt for blood allergy testing.

  3. Is there a home allergy test?

    Allergy test available at specific laboratory only and you have to visit the lab for allergy test. Either a skin test or a blood test can help to pinpoint the cause by looking for specific immunoglobulin E (IgE) antibodies.

  4. Shall I get home visit facility for allergy test in Pune?

    Yes. healthcare nt sickcare, provide free home visit collection facility in Pune and Pimpri Chinchwad for blood allergy test.

  5. How accurate are blood allergy test?

    Positive tests, however, are not always accurate. Meaning that the test shows positive even though you are not really allergic to the food being tested. Accuracy of allergy blood test vary from 80 to 95%

  6. Is an allergy test covered by insurance in India?

    Allergy treatment is covered by many insurance companies to some extent. Check with your insurance carrier in order to determine how much coverage your policy provides. These services are usually subject to a deductible.

All material copyright healthcare nt sickcare. Terms and conditions and Privacy Policy of use. The contents are for informational purposes only. Always seek the advice of your physician or other qualified health providers with questions you may have regarding a medical condition. Source: various online articles and our own offline experiences inspired this article. The content is meant for public awareness and regular posts to the clientele of healthcare nt sickcare.

©healthcare nt sickcare and, 2017-Till Date. Unauthorised use and/or duplication of this material without express and written permission from this site’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full credit is given to healthcare nt sickcare and with appropriate and specific direction to the original content.

Credit VivekNNair by

About healthcare nt sickcare

healthcare nt sickcare connects the major health ecosystem, patients, doctors, diagnostics, and other partners, to generate exceptional value and service for all, esp. The end-receivers (patients). We integrate different parts of the healthcare journey and put them together end-to-end on our platform so that patients can have one seamless healthcare experience, irrespective of their needs.

Item added to cart.
0 items - 0.00