Allergy - Fruit Panel

Fruit allergy test is done in suspected allergies due to certain fruits for determining the exact fruit source causing it (allergen). Since it is a food related allergy, it commonly causes gastro-intestinal symptoms like diarrhoea, but may even lead to other skin related symptoms like: Itching, running nose, sneezing, coughing, and hives. 
Certain severe cases may also lead to anaphylactic shock. Based on these results further specific testing is recommended. 

The Allergy-Fruit Panel test is done for individuals who develop allergic symptoms, such as stomach cramps, vomiting, diarrhoea, swelling of the tongue, lips or throat, and itching after eating fresh fruits.

Fruit allergy test measures the IgE mediated response to 8 different fruits. Total IgE levels are also measured. Further tests to a specific allergen will help in further diagnosis.

The Allergy-Fruit Panel test is a great way to determine whether you have an allergy to a certain fruit. The test uses IgE-mediated response to measure how strongly you are allergic to 8 different fruits. Total IgE levels are also measured so that any further testing for a specific allergen can be done with greater accuracy.

Fruit allergy test requires a blood sample post exposure to the fruit panel. A tourniquet (elastic) band is placed tightly on the upper arm. The patient is then asked to make a fist. This helps in the build-up of blood filling the veins. The skin is disinfected before needle insertion and the blood sample is collected in vacutainer. 

A blood sample after exposure to the allergens is required for the test. The area from where blood will be drawn will be sterilised. Then you will be asked to make a fist with your hand so that your veins are easier to find and measure. Finally, to collect the blood sample in a vacutainer, a tourniquet will be wrapped around your upper arm tightly. This will help in the build-up of blood filling your veins, which will make it easier to collect the sample. This may feel like a prick and slight tenderness may remain at the site of injection for a short while.

Positive result to a particular allergen indicates that the person is allergic to that fruit. Increased allergen-specific IgE levels further confirms that. Very often the test may be positive for more than one allergen as well. The further treatment course is decided based on the results.
Negative result may require other tests for differential diagnosis.

Do not take antihistamines for seven days before the test. Antihistamines block the inflammatory cascade that results in hives, so it would be counterproductive to take them before the test. Many over-the-counter medications should also be discontinued seven days before testing. Ask your doctor what to avoid before going for the test.

An allergen sensitization value < 0.35 indicates that the person is not allergic.

An allergen sensitization value between 0.70-3.49 is significant but further investigation is needed to confirm it.

An allergen sensitization value greater than 3.50 indicates that the person is allergic

If you are experiencing any of the following symptoms, you should schedule an Allergy - Fruit Panel test:

1. running nose

2. sneezing

3. coughing

4. diarrhoea

5. hives

6. itching

The best thing to do if you are allergic to a particular fruit is to avoid it as much as possible. You could also take anti-allergic medication to neutralise the effect of the agent if you have had it by accident. Seek immediate emergency care if severe symptoms occur.

Anaphylaxis is an allergic reaction that can happen very quickly, and it can lead to several dangerous symptoms including a rapid heart rate, difficulty breathing, a skin rash, vomiting, and nausea. If you or someone you know is having any type of reaction where the airways close up, seek medical help immediately!

The Allergy Fruit Panel test is also known as:

Fruit Allergy Panel

Allergy Fruit Comprehensive Panel