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Doctor insights on: What Does A Class 3 Allergy Mean

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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

Dr. John Chiu
2,638 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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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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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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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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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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I got allergy test result for my 9 month old son but don't know how to read it. Report has two columns: "Kiu (A)/L" and "class". What does each mean?

I got allergy test result for my 9 month old son but don't know how to read it. Report has two columns: "Kiu (A)/L" and "class". What does each mean?

Talk to doctor: A test by itself cannot make a diagnosis and it is the job of the doctor who ordered the tests to interpret them for you. Do give him a call. ...Read more

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If my allergy blood tests detected class 1 for milk and class 2 for wheat and egg and I ate pizza tonight with no reaction, means I'm not allergic?

If my allergy blood tests detected class 1 for milk and class 2 for wheat and egg and I ate pizza tonight with no reaction, means I'm not allergic?

History most impt: Allergy testing is used as a tool to confirm or eliminate allergens as a cause for allergies. The most common way to test is either on the skin or in the blood. If you have not had an allergic reaction to the foods mentioned above, then you are not allergic. Being reactive on the skin or finding allergic antibodies in blood means little without a history or lack of history to confirm. ...Read more

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What does it mean for a dentist to say you have a class 3 malocclusion?

What does it mean for a dentist to say you have a class 3 malocclusion?

Prognathism: Or an Angle Class III malocclusion means that the lower jaw protrudes forward and has a significant genetic component. ...Read more

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Is it possible to suffer a cat allergy intermittently when I live with three cats?

Is it possible to suffer a cat allergy intermittently when I live with three cats?

Cat allergy: If it is a mild allergy, your symptoms may come and go. Also other allergies may play a role and confuse you. ...Read more

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

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

Cough: Maybe allergies, asthma, a cold, bronchitis or acid reflux. Hard to tell from the info you provided. Check it out with your doctor ...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 was around dogs for about 2-3 hours and haven't seen my asthma or allergy flare up. Does this still mean I am allergic to dogs?

I was around dogs for about 2-3 hours and haven't seen my asthma or allergy flare up. Does this still mean I am allergic to dogs?

Maybe: Allergy to dogs varies in severity, so it depends on the extent of your involvement with the dogs. You can always get tested to see where you stand. ...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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If the husband has nut allergy does that mean our children can have it?

If the husband has nut allergy does that mean our children can have it?

Possible: If one or both parents have allergy, the risk for the child to have allergy increases dramatically. However, they do not inherit the specific allergy directly. They become allergic based on their own exposures. So they may not have the same set of allergies as their parents. Be cautious. ...Read more

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Do positive tests for food allergy mean I can never have that food again?

Do positive tests for food allergy mean I can never have that food again?

Big picture: Both blood tests and skin tests for allergy are infamous for producing false-positive reactions to foods that will never make you sick. Work with your allergist, note your own experiences with these foods, and try to sort out what you're truly allergic to, and avoid it. ...Read more

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Could I have a mosquito allergy? I mean really huge swellings from bites.

Could I have a mosquito allergy? I mean really huge swellings from bites.

Huge swellings: Absolutely. My son had this problem but it got better as he grew older. ...Read more

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In my allergy report histamine reading is given 5 stars. What does this mean?

In my allergy report histamine reading is given 5 stars. What does this mean?

Test Control: Histamine is used as a control on allergy tests. Meaning we expect you to have a reaction to histamine because that's the chemical that causes the symptoms seen on the skin in an allergic reaction and the presence of a reaction to it means your immune system is working properly by reacting to this chemical in the way we would expect it to. It makes your allergy test results valid. ...Read more

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What does it mean to get an allergy test? What happens during an allergy test?

What does it mean to get an allergy test? What happens during an allergy test?

Skin prick/lab test: To be checked for allergy, usually you have a skin prick test to introduce a small amount of the allergen into the superficial layer of your skin (often done on your back or forearm). Alternatively, sometimes a blood test is checked instead to check for allergic antibody specific to an allergen (example, milk or dog dander). ...Read more

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If I had a reaction to penicillin when I was a child, does that mean I have a allergy?

If I had a reaction to penicillin when I was a child, does that mean I have a allergy?

Maybe, maybe not: There have been studies of adults that were told or thought they had reactions to penicillin as children & the majority were not allergic on testing. Until you decide to have the testing done, you should consider yourself allergic & have it listed in your records. ...Read more

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Do u cough at night if u have allergy agains a med? If I only cough when I'm awake does that mean it's not the medicine but something else?

Do u cough at night if u have allergy agains a med? If I only cough when I'm awake does that mean it's not the medicine but something else?

Cough: Medication related cough can happen at night or during the day. Reflux and postnatal drip related cough most commonly are worse at night but aren't the only reason to cough at night. Since there are do many reasons to cough you are best seeking an evaluation with your doctor. ...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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What do you meant by fish allergy?

What do you meant by fish allergy?

Bony fish allergy: Main familes of seafood: bony fish (cod), bivalves (clam), crustaceans (crab), cephalopods (squid), gastropods (snail), with cross-reactivity within a family but rarely between families. Main symptoms: itchy/swollen lips/mouth/throat, nausea/vomiting, abdominal cramps, diarrhea, red/itchy skin, hives, runny/stuffy nose, chest tightness/wheezing, shortness of breath. Reactions occur within 1/2-2 hr. ...Read more

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What does it mean to have a gluten allergy?

What does it mean to have a gluten allergy?

Gluten sensativity: Physicians usually refer to this as gluten sensitivity or intolerance. Its not a true allergy. Many use this term incorrectly. Historically this term has referred to celiac disease which is a condition that results in abdominal pain, bloating, changes in stools, weight loss, fatigue, and weakness when someone with this problem consumes foods with gluten. ...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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What does coelic mean? I heard it is the gluten allergy.

What does coelic mean? I heard it is the gluten allergy.

Gluten sensitivity: Gluten sensitivity or celiac disease is the term describing a GI condition in which the individual is sensitive to gluten, which is present in wheat products. Fortunately now there are more and more products that do not contain gluten, so having a gluten free diet is not as difficult as it once was. ...Read more

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What happens if I have allergies does that mean I will be allergic to guinea pigs?

Not Automatically: Allergies in each and every person are different. Mother only way to know if you are allergic to guinea pig is to be allergy tested. But, if you have never been exposed to one before, you might have a negative allergy test now but develop allergy over time with regular exposure to Guinea Pig. ...Read more