Allergist Bathhurst

Allergist Bathhurst - Food allergies are generally mean an adverse immune response to a food protein. Reactions are different from various adverse responses to food such as food intolerance, toxin-mediated reactions and pharmacological reactions.

The main allergic element is normally a protein found in the food. When the body's immune system wrongly identifies a protein as a substance which is harmful, these types of allergies occur. Such proteins which are not correctly broken down in the digestive process are tagged by the IgE or the Immunoglobulin. These tags trick the immune system into thinking that the protein is harmful. When the immune system thinks that immune system is under attack, an allergic reaction is triggered. These reactions vary from severe to mild. Various types of allergic reactions consist of gastrointestinal distress, dermatitis and respiratory distress life-threatening anaphylactic responses like for instance vasodilatation and biphasic anaphylaxis. These are severe reactions that need immediate emergency intervention.

There are numerous common non-food protein allergies too. Among the main non-food related allergies is a latex sensitivity. Those people who suffer from protein allergies usually avoid contact with the problematic protein. There are various medications which could help treat, minimize or prevent protein allergy responses. Prevention is among the main treatment options as well as immunotherapy and desensitization. Numerous individuals who suffer from a diagnosed food allergy choose to carry an injectable form of epinephrine like Twinject or an EpiPen. They normally put on some type of medic alert jewelry so as to alert people around them in the event they become incapacitated by their allergy.

Common Symptoms

There are several ways wherein allergies can present. For instance, hives on the back are a common allergy sign. Classic IgE or immunoglobulin-E mediated food allergies are classified as type-I immediate Hypersensitivity reactions. These allergic reactions have an acute onset, usually appearing within seconds of contact to one hour and could consist of: itching of throat, lips, mouth, tongue, skin, skin eyes or various areas, swelling of whole face, eyelids, tongue or lips, a runny or congested nose, difficulty swallowing, hoarse voice, nausea, lack of breath or wheezing, vomiting, light-headedness, fainting, stomach cramps or abdominal pain. Clearly, indications vary from individual to individual. The amount of exposure to the allergic substance also varies from individual to individual.

One more common allergy is to peanuts. Peanuts are a member of the bean family. Some of the kids with peanut allergies or sensitivities would outgrow them, however some of these allergies can be severe and life threatening. Tree nuts like pine nuts, pistachios, walnuts and pecans are also common allergens. Those who have an allergy to tree nuts could be sensitive to just one type or perhaps numerous types in the tree nut family. Several seeds like for instance poppy seeds and sesame seed contain some oils which have protein present. This could likewise elicit an allergic reaction. About 1 in 50 kids has an egg allergy. This particular kind of allergy is usually outgrown by kids when they reach the age of five years old. Commonly in the case of egg allergies, the sensitivity is to the proteins in the egg white as opposed to those within the yolk.

Dairy allergies are another common type. The milk from sheep, goats and cows is a common allergen for much of the population. These sufferers are unable to tolerate dairy products like for instance cheese, yogurt and ice cream. Approximately a small portion of children, who have a milk allergy, about 10 percent, will also have a response to beef, since beef contains a tiny amount of protein that is found in cow's milk. Other common allergenic proteins are present within the following foods: fish, soy, wheat, spices, fruits, shellfish, vegetables, synthetic and natural colors as well as chemical additives such as MSG.

Eggs, milk, tree nuts, peanuts, shellfish, seafood, wheat and soy are the top eight food allergies. Within North America, these account for over ninety percent of allergies to food. Sesame seeds are becoming a more popular allergen also. There has also been a noted surplus of rice allergies in Eastern Asia where rice forms a big part of the local diet.

Examples of Allergy Testing Include:
One of the common kinds of allergy testing is skin prick testing. It is easy to carry out and the results are available within minutes. Some allergists utilize a bifurcated needle, that looks like a fork with 2 prongs. Others can use a multi-test, that can look like a small board that has many pins sticking out of it. During these tests, a small amount of the suspected allergen is put onto the skin or into a testing device. The device is then placed on the skin in order to prick and go through the top skin layer. This places a small amount of allergen under the skin. If the person is allergic, a hive would form at the spot.

This test normally yields a negative or positive result. It is positive for quickly learning if a person is allergic to a particular food or not because it detects allergic antibodies known as IgE. Skin tests are unable to predict if a reaction will happen if a person ingests a specific allergen or even what type of response will happen with ingestion. However, skin tests can confirm an allergy according to a person's history of responses with a particular food. Non-IgE mediated allergies cannot be detected by this particular method.

One more helpful diagnostic tool for evaluating IgE-mediated food allergies are blood tests. The RadioAllergoSorbent Test is a blood test which is called RAST for short. This particular test detects the presence of IgE antibodies to a particular allergen. A CAP-RAST test is a particular type of RAST test which could show the amount of IgE found in every allergen.

Researchers have been able to determine "predictive values" for particular foods. These predictive values could be then compared to the RAST blood test results. Like for instance, if a person's RAST score is higher compared to the predictive value for that particular food, there is a 95% chance the individual would have an allergic reaction if they ingest that food. This is limited to anaphylaxis and rash reactions. There are presently predictive values available for peanut, soy, milk, egg, fish and wheat. Blood tests enable hundreds of allergens to be tested from a single sample. This consists of food allergies as well as inhalants. It is vital to note that non-IgE mediated allergies cannot be detected by this method.

The double-blind placebo-controlled food challenges are referred to as DBPCFC. They are considered to be the gold standard for diagnosing food allergies, along with most non-IgE mediated responses. Blind food challenges are given to the patient. This involves packaging the suspected allergen into a capsule and giving it to patient and observing them for any symptoms or signs of an allergic reaction. Usually, these challenges happen within a hospital environment under the supervision of a physician because of the possibility of anaphylaxis. For the evaluation of non-IgE or eosinophilic responses, diagnostic means like endoscopy, biopsy and colonoscopy are commonly used.

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Bathhurst Naturopathic Clinic


Bathhurst, New Brunswick


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