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Doctor insights on: Whey Allergy Test

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Does allergy testing detect all allergies?

Does allergy testing detect all allergies?

No: Appropriate allergy testing is guided by the patients history and physical examination. Based upon this one's allergist will make a decision what to be tested for. The test, particularly for outdoor allergens is based upon the common allergens is that particular agricultural zone. Does this mean that all allergens will be tested no. ...Read more

Dr. John Chiu
2,660 doctors shared insights

Allergies (Definition)

Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more


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Postive, high, rast test results - only hayfever and animal reactions though? Are rast tests reliable?

Postive, high, rast test results - only hayfever and animal reactions though?  Are rast tests reliable?

RAST vs skin tests: The reason allergists prefer skin tests to rast tests is because the skin tests show your body's biological response to allergens. Rast tests only measure the amount of antibody and do not predict its clinical binding and symptom-provoking abilities. That said, no test is perfect. All have to be compared to your experience and correlated with your history. Allergists spend more time doing this. ...Read more

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Does an allergy scratch test test for mold and dust allergies?

Does an allergy scratch test test for mold and dust allergies?

Yes: Skin allergy testing can check for number of allergens. These include environmental and food allergens. ...Read more

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Are allergy tests for food sensitivites and/or allergies fairly accurate?

Are allergy tests for food sensitivites and/or allergies fairly accurate?

Yes: Allergy testing is fairly accurate for allergies due to ige mediated allergic reactions. Others types of immune and non-immune reactions are not detected by this type of testing. In addition the results of testing need to correlate with (match) the clinical picture and in some instances food and/or drug challenges will need to be dome. See an allergist for evaluation and interpretation of results. ...Read more

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Rast test is for which allergens?

Rast test is for which allergens?

For any and all: The test can be for any of the many allergens. A panel of allergens peculiar to a geographic area is usually employed. ...Read more

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What is an allergy test like to test for pollen allergies?

What is an allergy test like to test for pollen allergies?

Easy: Skin testing for pollen allergy entails: cleaning the skin with alcohol, number the skin to keep track of the different allergens tested, a "prick" with skin test device that has a drop of the allergen on the tip and then waiting 15-20 minutes to see if a reaction occurs. The skin test feels like a mosquito bite it is really quite painless. ...Read more

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Looking for nut allergies symptoms, eg, cashew allergy?

Looking for nut allergies symptoms, eg, cashew allergy?

Varies: Allergic reactions varies with individuals.Some can consume cashews, while to others they are toxic.Reactions can be mild or severe. Mild reactions include nausea , vomiting, diarrhea. Skin rash and itching on the skin.The eyes , roof of mouth and throat may itch.Severe reactions include difficulty breathing, swelling to face and throat.The most dangerous is anaphylaxis.This can be fatal ...Read more

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Igg allergy test shows moderate allergy to all dairy and eggs. Test prompted by chronic nausea, nothing else. Are these tests reliable?

Igg allergy test shows moderate allergy to all dairy and eggs. Test prompted by chronic nausea, nothing else.  Are these tests reliable?

Food allergy test: Igg tests for food allergies have not been shown in the litterature to have any clinical significance and therefore are not considered reliable. Your symptoms are not allergic in nature, i would look for a gastrointestinal cause. ...Read more

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Diagnosed with asthma+allergic rhinitis 2years.Methacholine challenge test today:Negative.ImmunoCAP(A-IgE):Total 1114, 93.4 IgE(kU/l), good control?

Diagnosed with asthma+allergic rhinitis 2years.Methacholine challenge test today:Negative.ImmunoCAP(A-IgE):Total 1114, 93.4 IgE(kU/l), good control?

Likely for asthma: If the methacholine challenge was negative,that means your asthma is under good control which is measured mostly by your quality of life, the number of asthma attacks, and your lung function. The IgE level is not included in measuring control. However it has nothing to do with your allergic rhinitis. ...Read more

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Food allergy test came back negative, but doc says it doesn't test for allergy to genetically modified forms of same foods? How do I test gmo allergy?

Food allergy test came back negative, but doc says it doesn't test for allergy to genetically modified forms of same foods? How do I test gmo allergy?

No such test: I have colleagues here who will disagree, but I think that If the dangers were real, by now the NIH research piranhas wouldn't allow GMO's in their cafeteria -- and anyone who could demonstrate a real effect would make his/her reputation. Scaremongers encourage you to self-diagnose, and if you do this, you will never feel well again. Look elsewhere to explain your symptoms and be discerning. ...Read more

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How to test for gmo corn allergy?

How to test for gmo corn allergy?

Cannot: You cannot test for allergy to GMO corn versus regular corn. Testing can only tell if you are allergic to corn in general. ...Read more

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Is milk protein allergy and milk protein intolerance the same thing? (Not talking about lactose intolerance).

No: you can have an intolerance with out having an allergy. An allergy can be occur when your body makes antibodies to the milk protein- and an intolerance doesnt necessarily have to be related to antibodies. The most common allergy is IgE mediated, with rash, swelling, hives. An intolerance may not cause those symptoms- they may cause diarrhea ...Read more

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How is nut allergy testing, de-sensitizing done?

How is nut allergy testing, de-sensitizing done?

Orally in small incr: Nut desensitization is still not approved by the fda. Nut allergen is given orally in progressively larger doses, starting from a dose that does not cause systemic reactions. Progressive doses cause a desensitization, actual tolerance after discontinuation of daily doses may or may not develop. Standardized extracts for use in practice are not in use today. ...Read more

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Is food allergy testing accurate?

Is food allergy testing accurate?

Sort of: Food Allergy is diagnosed by taking a thorough history and then confirming the history through skin and/or blood test. Random skin and /or blood test for food allergy in the absence of appropriate clinical history is not very accurate. ...Read more

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Which allergies would a standard allergy blood test test for?

Which allergies would a standard allergy blood test test for?

Nearly everything: Immunocap ige is the most commonly employed method to test allergy after allergy skin testing. It can be tested to nearly all allergens available. Blood test for allergy is meaningful when strongly positive but has a high false-negative rate when compared to allergy skin testing. The allergens used in the blood testing are often different from those used in allergy skin testing. ...Read more

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Shellfish / crustacean allergy testing safe? Costly?

Consider: There are such tests, such as rast testing (radioallergosorbent testing), cost varries by lab and your insurer (if you have). ...Read more

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Can wheat allergy test be wrong?

Can wheat allergy test be wrong?

Yes but: A positive reaction only means sensitization and not necessarily a disease condition. This is just like getting a blood cholesterol test- the higher the number, the more likely (but not certainty) that you will have cardiovascular disease. The only definitive way to confirm it is with a food challenge at the allergist's office. ...Read more

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Can environmental allergies (food, pollen, dust mites, contrast dye, penicillin) cause a high positive ANA?

Can environmental allergies (food, pollen, dust mites, contrast dye, penicillin) cause a high positive ANA?

I have seen this: While the +ANA is suggestive of SLE there can be other causes - other connective tissue disease, autoimmune thyroid disease, auto immune hepatitis to name some. I have seen a lot of people with + ANAs who only have as another problem a history of allergic reactions and I am convinced that thee allergic reactions can cause a + ANA. Everyone can have very low titters (amount) of ANA. ...Read more