Allergy
Food Allergies and Intolerances in Children: Diagnosis
How is allergy diagnosed in a child?
The first thing to exist are symptoms suggesting the existence of allergy. There are two methods:
Prick skin test
Skin testing is the method of choice and can be performed at any age. Involves placing a drop of the suspected substance in the anterior forearm and punctured with a lancet. After 15 minutes there is observed if skin reaction (a papule). If it appears positive.
Determination of IgE (immunoglobulin) or specific serum RAST
A sample of blood from the child and check the existence of specific IgE against food. If there is a certain level of IgE test is positive and can diagnose the allergy. Read the rest of this entry »
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Food Allergies and Intolerances in Children: Allergic Reactions
Symptoms of allergic reactions
The symptoms of allergy, in contrast to the intolerance occur immediately, usually within minutes of contact with the substance responsible (contact, inhalation or ingestion).
Usually manifest in the first two years of life, often coinciding with the introduction of different foods in the diet.
The most common manifestations are:
Skin
- Urticaria Acute is the appearance of hives on the skin, itching or swelling of face, lips or ears. It can be all over the body, or only in the contact area.
- Atopic Dermatitis: usually occurs in children who have sensitive skin and skin problems of all kinds from birth, but often associated with food allergies (especially to milk and eggs) that enhance its basic skin problems. Read the rest of this entry »
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Types of Food Allergies in Children
Most common types of food allergies in children:
Before going to comment that people with allergies develop a special predisposition, inherited from their parents in most cases, to suffer one or several diseases mediated “immune mechanisms.” That is, the immune system of these people has a special ability to, when in contact with certain substances (for very different type), cause an allergic reaction mediated by immunoglobulin E.
The immunoglobulin E are the ones that cause the formation of other substances that involve the appearance of diseases such as allergic rhinitis, allergic asthma, atopic dermatitis or food allergy, often associated in the same patient.
Although allergy is a medicine not yet fully developed as we know there are plenty of foods implicated in food allergies. Some of the most common are: Read the rest of this entry »
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Types of Food Intolerances in Children
Most common types of food intolerances in children:
Protein intolerance of cow’s milk
Cow’s milk is composed of two fractions: casein and whey (which in turn is formed by other proteins).
There are two serum proteins: alpha S1-casein and beta-lactoglobulin, which are not found in breast milk, which are the main causes of allergies and intolerances to cow’s milk.
It usually appears during the first month of life in infants fed formula or breast milk children whose mothers drink a lot of milk (although this is rare).
In this case are vomiting, diarrhea, blood loss through injury of intestinal mucosa and anemia.
You can also occur later, two or three months. In this case we observed prolonged diarrhea, protein loss, malabsorption of other foods (for the injury of intestinal mucosa), and therefore lack of normal growth of the child. Read the rest of this entry »
Food Allergies and Intolerances in Children
What foods can cause reactions?
We have always known that certain foods can produce adverse reactions in people and they usually begin in childhood.
The symptoms of allergic reactions usually appear within the first two years of life, often coinciding with the introduction of different foods in the diet.
Among these reactions we find a skin rash, vomiting and diarrhea, and even with more severe symptoms such as breathing difficulties.
In fact the symptoms are varied and for a long time there has been considerable confusion about the cause of such reactions.
Currently there is already a distinction between the two main types of adverse reactions that can cause food:
- Food Allergies
- Food intolerances Read the rest of this entry »
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