Intradermal allergen testing
Last updated: Wednesday, 17, March, 2004
In vivo procedure which should only be performed by an experienced practitioner.
Intradermal injection of standardized allergen solutions.
| Reference Interval|
Reaction diameter 3 mm greater than control.
Role in testing for IgE-mediated drug allergy (esp penicillin) and stinging insect allergy. Only occasionally used with other allergen extracts.
Should be interpreted in association with clinical history. Should always be preceded by skin prick testing and performed only if skin prick testing is negative.
Walls R. Allergies and their management. Maclennan and Petty 1997.