Allergy Walnut Fluorescence Assay Skin
What is this test?
This test helps to find whether an individual is allergic to walnut or not. In this test, a solution containing allergen walnut is applied to the skin. Then the applied area of the skin is pricked with a lancet needle.
What is Walnut and its benefits?
Walnuts are round and single-seeded fruits. They provide proteins, fiber, healthy fats, vitamins, and minerals. The most common variety of walnut is English walnut. It has antioxidant properties along with anti-inflammatory and anti-cancer properties. Walnut helps in reducing the LDL cholesterol levels in the blood. It has omega-3 fat that helps to reduce heart disease.
Consumption of walnut nourishes the good bacteria lives in the gut and promotes good health. It also helps to control appetite and hunger. Walnut helps in controlling type-2 diabetes and lowering blood pressure. It is also good for better brain function and supports male reproductive health.
What is Walnut allergy?
Walnut allergy is a type of allergy in which an individual is allergic to the walnut and may suffer from symptoms such as abdominal pain and cramps, shortness of breath, wheezing, cough, vomiting, nausea, swelling of face and throat, low blood pressure, dizziness, itching of mouth, eyes, throat, and skin, nasal congestion, runny nose, etc. In severe allergic conditions, anaphylaxis may occur.
There are two types of allergies to walnut and they are primary food allergy and secondary food allergy. In primary food allergy, an individual becomes allergic to walnut by direct contact with walnut or with its products. Primary food allergy may cause severe life danger allergic reaction. In secondary food allergy, the individual is already allergic to the pollens and then may develop an allergy to the walnut as the proteins in pollen may present in walnut. This is known as a pollen-food syndrome.
Why this test is performed?
This test is performed to check whether an individual is allergic to watermelon or not. The doctor may ask you to undergo this test if you are suffering from symptoms such as abdominal pain and cramps, shortness of breath, wheezing, cough, vomiting, nausea, swelling of face and throat, low blood pressure, dizziness, itching of mouth, eyes, throat, and skin, nasal congestion, runny nose, etc.
Test Preparation
No special preparation is needed for Allergy Walnut Fluorescence Assay Skin. Inform your doctor if you are on any medications or have any underlying medical conditions or allergies before undergoing Allergy Walnut Fluorescence Assay Skin. Your doctor depending on your condition will give specific instructions.
Understanding your test results
The test results may be different depending on gender, age, and health conditions. Inform your doctor if you have any other allergies.
Generally, there is no need for medical interventions if test results are normal.
If the test results are negative it may indicate that there is no wheal and flare type reaction. So, the individual is not allergic to walnut.
Wheal-and-flare reaction is the swelling and redness of the skin.
In case the test results are positive it may indicate that there is a wheal-and-flare type reaction on the skin. A wheal with a diameter of 3mm or more is generally considered as a positive result which means the individual is allergic to walnut.
| Gender | Age groups | Value |
| UNISEX | All age groups | A wheal and flare reaction of atleast 3mm indicates that the patient is allergic to the substance |