Doctor insights on:
Tests For Sulfa Allergy
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
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
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
Skin or blood: Skin testing involves placing drops of extracts of pollen, animal dander, mold, dust mite & food on your arms or back. If allergic a small hive appears within 20 minutes. An alternative is rast, a blood test that detects the same allergy antibodies found with skin testing. Sometimes one test is needed to confirm the results of the other. Provocation tests are used in cases of "local" allergy. ...Read moreSee 1 more doctor answer
I am an eczema patient should I go for ALLERGY ECZEMA COMPREHENSIVE PANEL, SERUM (FEIA) or ALLERGY COMPREHENSIVE PROFILE, SERUM
None of these: Eczema---atopic dermatitis----is NOT an allergy. Allergy tests are not useful, often harmful, for eczema. It is not related to foods. Not "stress" either. It is a genetic defect in the surface of the skin. We have very good technology to help eczema, but no cure. SEE A DERMATOLOGIST. Meanwhile use skin cleansers with pH 6 to 7. Apply a liberal amount of a ceramide cream after washing. A prescripti ...Read more
Unrelated: There is a common misunderstanding that one can be allergic to iodine yet this is incompatible with life -our thyroid hormone production depends on it. You are allergic to the muscle protein in shellfish and not to the iodine. The contrast dye reaction is from the molecular structure of the dye which releases histamine. You are not at higher risk for a dye reaction because of a shellfish allergy ...Read more
If allergic to Bactrim (sulfamethoxazole and trimethoprim) & Ceclor, is allergy to all sulfa drugs & cephalosporins assumed?
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
Good question: Hives (or urticaria) represent a sensitivity to something dilating the small vessels under the skin, causing a raised pink lesion; if u press on it, it will blanch, let it go it pinks up again. Many causes: foods, chemicals, perfumes, very often stress. Stress can increase acid formation in stomach, Zantac (ranitidine) reduces it. Over 50% of time, one can't find cause. I treat initially c antihistamines. ...Read moreSee 2 more doctor answers
Yes: Skin allergy testing can check for number of allergens. These include environmental and food allergens. ...Read more
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
Are allergic tests for cats definitive? Will the test be done for all for major allergens known in cats?
Depends: There are two materials used for cat allergy testing - hair & skin. Both contain the major cat allergen. Cat skin contains other allergens - especially cat Albumin - not present in cat hair - that sometimes cause allergic symptoms. So if you were tested only with cat hair perhaps you could be retested with cat skin (aka cat epidermal or cat dander). ...Read moreSee 2 more doctor answers
I have a Duodenal ulcer and positive for H.Pylori. Allergic to Penicillin erythromycin cephalosporin diclofenac. What antibiotic is available to take?
See allergist: I would also suggest seeing an allergist to evaluate you and determine if your allergies are true. It is very unusual to be allergic to so many different medications. And many times, patients grow out of medication allergies even if they were true in the past. ...Read moreSee 1 more doctor answer
Allergy Dr ordered allergy bloodtests, I take Zyrtec, Allegra, (fexofenadine) singular for chronic urticaria each day. He said these will not affect the tests, true?
Is immunicap testing reliable for allergy in kids with severe excema?
He already did skin prick and blood tests for specific allergies
Helps some: All allergy related tests have benefits & limitations. Any finding of an elevated IgE response to a particular food is worrisome and worthy of excluding that food. Elevated IgG levels to foods do not always correlate with the kids actual responses to that food. This or other tests can provide a guide to your food selections so you can eliminate candidate foods & see if it makes a difference. ...Read moreSee 2 more doctor answers