Because it injects the allergen slightly deeper into the skin layer, it is much more sensitive. However, to ensure safety, we always perform the less-invasive skin prick test first.
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Diagnostic Test
Intradermal Test
More sensitive than skin prick; used for venom and drug allergies where a precise diagnosis is needed.
Duration:30 minutes
Overview
An Intradermal Test is a highly sensitive diagnostic tool used when a skin prick test is negative or inconclusive but a strong clinical suspicion of allergy remains. It is commonly employed for evaluating drug allergies, penicillin hypersensitivity, and insect venom allergies (like bee or wasp stings).
How It Works
- Preparation: The skin, typically on the upper arm, is cleaned.
- Injection: A minute amount of diluted allergen extract is injected just below the skin surface using a microscopic needle, creating a tiny bubble.
- Measurement: After 15–20 minutes, the site is inspected for changes in size or redness.
What to Expect
- Slightly more sensation than a skin prick test, similar to a brief sting.
- Accurate results for drug and venom triggers.
- Conducted in a fully equipped clinical setting for safety.
Who Is It For?
- Patients requiring verification of drug allergies (penicillin, local anesthetics).
- Individuals who had severe reactions to insect stings.
- Aeroallergen evaluation when skin prick testing is negative but symptoms are persistent.
Frequently Asked Questions
The procedure and observation period take about 30 to 45 minutes.
Take the next step
Interested in booking a intradermal test? Consult our specialists.
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