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What is an allergy test?

What is an allergy test?

A skin prick test is a diagnostic method for the diagnosis of allergies. The aim of an allergy test is to trigger a minor yet controlled allergic reaction.

 

How is a Skin Prick Test carried out?

The test is typically carried out on the inner side of the forearm, alternatively the test can be performed on the back. The test area must be clean, dry and free from eczema.

 Allergen solutions and controls are applied in droplets to the skin at an appropriate distance from each other.

The top layer of skin is scratched using a lancet, through the droplets.

Excess allergen is wiped from the skin and the reaction is read after 15 minutes.

If the reaction is positive it presents itself as a small raised swelling/wheal which is measured using a special ruler.

 

 

 

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