Skin allergy tests
Hospital o serveis complementaris relacionats
There are two main types:
- Skin prick tests: a drop of a substance is placed on the skin and the skin under the drop is gently pricked with a small needle.
- Intradermal tests: a small amount of the diluted substance is injected into the top layer of skin. If the patient is “sensitised”, a small local reaction appears with itching, redness, swelling, etc. This reaction is compared with physiological serum (negative control that does not need to cause a reaction) and histamine (positive control that has to react)
The risk of these tests is very low. Only in extremely allergic patients and usually with drug testing, there is a certain risk of serious and widespread allergic reaction.
In some cases, blood tests can be conducted to assess blood sensitisation.
Related professionals at Vall d'Hebron
Victòria Cardona Dahl, Mar Guilarte Clavero, Olga Luengo Sánchez, Moisés Labrador Horrillo, Anna Sala Cunill, Cristina Blasco Velero, Teresa Garriga Baraut, Blanca Vila Indurain, Emilia Cid Rodríguez