Doctor insights on:
What Does A Class 3 Allergy 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
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
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
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
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
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
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
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
Prognathism: Or an Angle Class III malocclusion means that the lower jaw protrudes forward and has a significant genetic component. ...Read more
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
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
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 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
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
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
Huge swellings: Absolutely. My son had this problem but it got better as he grew older. ...Read more
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
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
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?
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
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
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
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
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
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
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
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
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