Doctor insights on:
Wheat Allergy Test Results
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
A wheat allergy is an exaggerated immune response due to exposure to wheat protein. The reaction can present with typical symptoms of hives, respiratory symptoms (cough, wheeze, shortness of breath), GI symptoms (abdominal pain, vomiting), swelling, loss of consciousness, and can be fatal. Symptoms typically present within minutes to a couple hours ...Read more
Yes: If the hypothyroidism is caused by an autoimmune process, it is possible for allergy testing of other items to show false positives. I would get the thyroid disease settled down and retest or see allergist about alternative ways to test for wheat allergy that would not cross react with the thyroid antibodies the body is producing. ...Read more
Igg allergy test shows moderate allergy to all dairy and eggs. Test prompted by chronic nausea, nothing else. Are these tests reliable?
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
Gut acts positive ??: There are a many conditions with overlapping symptoms effecting the gut. You don't list why the gut acts positive, which limits my answer.You can have intolerances to a variety of foods, artificial food dyes (red #40), and others, that will give symptoms but not trigger the immune tests for celiac disease. Keeping a food diary & eliminating/re-adding potential agents is one way track them down. ...Read moreSee 1 more doctor answer
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
Yes: Skin allergy testing can check for number of allergens. These include environmental and food allergens. ...Read more
No: Neither contain cholesterol or fatGet a more detailed answer ›
Neither: No allergy antibodies in food intolerance. That's what we're looking for with blood and skin testing. So testing can rule-out food allergy in a case of food intolerance. The history and physical examination is usually sufficient to make a diagnosis of food intolerance. If testing is recommended skin testing is much less expensive and perhaps a little more sensitive than blood testing. ...Read more
If u have mild milk allergy with prick test negative . The lactose intolerance breath test will be negative or positive ? Please reply thx ...
Two problems: The skin prick test looks for ige antibodies to a potential allergen. A negative test means allergy is much less likely, but skin tests can miss allergy. Lactose intolerance is not an allergy, so skin testing would not be helpful in a suspected case. The hydrogen breath test can be used to confirm lactose intolerance. ...Read more
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 moreSee 1 more doctor answer
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
Is an IGE allergy blood test as accurate as a skin test? My skin test from 1 year prior to IGE blood test showed additional allergens.
Likely complementary: Although prick skin test is considered better in detecting food allergies the results of blood tests are complementary. I often order the blood test first in a case of a food suspected of causing anaphylaxis. If the result is negative or equivocal, then I would proceed with a skin test prior to a food challenge. The results are at times discrepant. ...Read more
Erosive gastritis. h.pylori blood test positive, breath test positive, stool antigen test negative, biopsy negative. what to do ?
Treat it: The positive H. pylori antibody test is not a reliable indicator of current infection. The gold standard for H. pylori treatment is the gastric biopsy, and this is negative in this patient. However, I am impressed by the positive breath test and erosive gastritis. I would have expected stool antigen to be positive, as it mirrors the breath test. Given the discrepant results, treat the patient. ...Read more
Wallnut allergy: Not that i know of. A skin patch test by dermatologist or allergist is routine. ...Read more
No, definite chance: Blood tests for wheat allergy measure IgG and/or IgE antibodies to proteins in wheat (which may include gluten) but not everyone with celiac disease will have these antibodies. The best blood test is IgA anti-tissue transglutaminase. If you really want to rule out celiac disease you should get that test- but only after eating gluten! See http://www.csaceliacs.org/diagnosis_of_celiac_disease.jsp ...Read more
Dr ordered blood allergy tests, but i've read these tests are unreliable. if they show food allergies should i believe it? skin testing is negative.
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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