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Doctor insights on: What Is Class 3 Allergy

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What is a class 3 allergy?

What is a class 3 allergy?

Moderate RAST result: Dr. Shulan is correct: type 3 immune reactions involve igg & antigen. "class 3 allergy" may also refer to rast, a blood test for detecting ige against antigen. For convenience labs define from 5 to 7 levels. Class 2 is often borderline & class 3 low positive. But positive is positive. There is little significant difference between class 3 & class 6. Photo: dr & dr ishizaka, discoverers of ige. ...Read more

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Dr. John Chiu
2,586 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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What is a class 3 allergy to eggs?

What is a class 3 allergy to eggs?

History is more imp: Not really sure what is meant by this. For food allergy the most important aspect in making this diagnosis is the patient history and what type of reaction occurered. Then food allergy skin test or blood test are done to confirm the history. The level of positivity on these tests are not really predictive of the type of reaction one could have. ...Read more

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What does a class 3 allergy to eggs mean?

What does a class 3 allergy to eggs mean?

High level allergy: When food allergies are evaluated by blood tests, the amount of allergic antibody (ige) against a particular food is quantified and a classification is assigned. The higher the class, the more antibody was found against that food. Class 0 has little or no ige detected while class 6 means very high levels were found. Most allergists feel class 3 or higher indicates significant allergy. ...Read more

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Does a class 3 allergy require an epi pen? My daughter just got diagnosed with a class 3 peanut allergy.

Does a class 3 allergy require an epi pen? My daughter just got diagnosed with a class 3 peanut allergy.

Need epipen (epinephrine): Numbers do not always correlate well with severity of eventual reaction, so I wouldn't say she's safe because it's only a level 3. For something like possible peanut allergy, I'd discuss/consult with an allergist because this situation could be life or death ...Read more

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My 10 month old son has a class 3 allergy to peanuts and milk. When given milk products his face breaks out in hives. Is class 3 serious?

My 10 month old son has a class 3 allergy to peanuts and milk. When given milk products his face breaks out in hives. Is class 3 serious?

Mgt: Most allergic reactions are mild and involve only the GI system and skin, but sometimes there can be a more severe reaction. It is important to avoid the triggering agents. Your PCP can advise, but there are several good resources for parents online for food allergies. ...Read more

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Recently, I have been coughing for three days. Is it just allergies?

Recently, I have been coughing for three days. Is it just allergies?

Hard to tell: Cough can be due to a number of conditions. A common cold or upper respiratory tract infections is probably the most likely cause but poorly controlled allergies, asthma, and/or GERD can also cause issues with persistent cough. If you have increased post-nasal drip from allergies this is likely contributing. Try symptomatic management. See your primary doctor for further workup if persists. ...Read more

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I want to know three causes of food allergies?

I want to know three causes of food allergies?

Food Allergy: Check out this mayo clinic article for your reading pleasure: http://www. Mayoclinic. Com/health/food-allergy/ds00082/dsection=causes. ...Read more

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I have three food allergies that just manifested @age 35. now im ill all the time. Could these allergies be a symptom of another disease? Why so late?

I have three food allergies that just manifested @age 35. now im ill all the time. Could these allergies be a symptom of another disease? Why so late?

? intolerance: Vs a true allergy to whatever foods that cause the problem, yes food allergy can occur late, although uncommon, you need to see an allergist/ immunologist and may be a gastro-enterlogist and a dietician, but ask your primary doctor first for initial evaluation, best wishes ...Read more

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My? Was should I be afraid to eat corn since my allergy test showed I was class 1 really low to corn can I eat the corn additives I've never had prob

My? Was should I be afraid to eat corn since my allergy test showed I was class 1 really low to corn can I eat the corn additives I've never had prob

PFTs: Your history indicates that you have breathlessness. The cause for this should be determined. Since your physician has ordered allergy testing, they can guide your diet. Grd one reactions with no symptoms associated are unlikely to cause future problems. A pulmonary function test with and without a bronchodilator is indicated though for your respiratory symptoms. ...Read more

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Will my three year old grow out of his food allergies?

Maybe: Peanut and tree nut allergies are less likely to wane over time, but a small percentage of patients will lose their sensitivity eventually. Eggs, milk, wheat, and soy allergy are more likely to go away. ...Read more

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Anaphylaxis, allergy and hypersensitivity, what's the difference between these three?

Anaphylaxis, allergy and hypersensitivity, what's the difference between these three?

Degrees of severity: Anaphylaxis is an allergy or hypersensitivity reaction to an allergen, usually (there are rare people that we don't know what causes their anaphylaxis). Anaphylaxis is the most extreme form of allergy that has the potential to be fatal if not treated promptly with epinephrine. ...Read more

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Is it "normal" to have common cold or allergies every two to three months? How do you prevent it? Will I need an allergy test to find the cause?

Perhaps but: The average adults have about 3 colds a year and thus your problem may not be unusual until the duration of the cold exceeds 2-3 weeks each time and the occurrence is seasonal. If you have a "cold" every 2 months however, then the chance for allergy rises. The presence of itching and lack of a fever would point more to allergy and allergy tests would be the answer. ...Read more

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Are allergies/anaphylactic reactions classed as a disability?

Are allergies/anaphylactic reactions classed as a disability?

Not usually: Unless something interferes with your ability to perform normal activities or perform employment, you are not considered disabled. Severe asthma is probably one of the few conditions associated with "allergies" but allergies or anaphylaxis are usually not considered a disability. ...Read more

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Recently got allergy tested I tested class 1 real low for corn my allergist said I could still eat it is that okay?

Recently got allergy tested I tested class 1 real low for corn my allergist said I could still eat it is that okay?

Corn: If you have been eating it without symptoms, it should be fine to eat. Case in point unnecessary food testing should not be done without justifiable suspicion. ...Read more

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Recently got allergy tested tested positive for corn class 1 really low allergist said I could stil eat it is that okay?

Recently got allergy tested tested positive for corn class 1 really low allergist said I could stil eat it is that okay?

CLASS1 NOT SIGNIFICA: Class 1 test does not mean you are allegic to corn and as your allergist recommended you can still eat it. ...Read more

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Last three days everything I eat I end up going to rr with diarrhea no other symptoms no food allergies no one else sick?

Last three days everything I eat I end up going to rr with diarrhea no other symptoms no food allergies no one else sick?

Hard to tell: But if it has been present for 3 days and not getting better, it is only prudent for you to consult your doctor about this issue especially if you have been to a less developed country within the past 2 weeks. ...Read more