Prick test
Test to seek immediate
hypersensitivity to ALLERGEN.
To do this, simply prick the skin of
the forearm with a special needle through a drop of allergen solution.
The introduction of the allergen in
the skin quickly causes DREGANULATION OF MAST that release various chemical
mediators including histamine, which causes a skin induration and a red halo.
Reading this test must be done 20 to
30 minutes after injection.
The main allergens that are looking
hypersensitivity are pollens, house dust, mold, animal dander, hymenoptera
venom, latex, sometimes food allergens such as peanuts (very common food
allergy in the child).
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