A full allergy test can take anywhere from 20 minutes to 3 hours, depending on the type of test performed.
Different Allergy Test Durations
Several types of allergy tests exist, each with varying durations:
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Skin Prick Test: This common test typically takes 90 minutes to two hours. Multiple allergens are tested simultaneously. (Aspire Allergy)
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Skin Patch Test: This test involves applying allergens to patches placed on your skin. Expect an appointment lasting approximately one hour. (WebMD)
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Intradermal Allergy Test: This test involves injecting small amounts of allergens under the skin. Results are usually ready within 20 minutes. (Mount Sinai)
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Blood Test (Total IgE & Specific IgE): A blood draw for allergy testing only takes a few minutes. (Cleveland Clinic). Analysis time is not included in this duration.
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Comprehensive Allergy Panel (In-Office): Some clinics may offer comprehensive in-office panels that combine multiple tests and could take up to 2-3 hours. (Cleveland Clinic, Family Allergy & Asthma, UPMC )
The "full" or "complete" allergy panel, as referred to by some, often encompasses multiple tests; therefore, the total time commitment varies greatly.
Factors Affecting Test Duration:
- Number of allergens tested: More allergens mean longer testing time.
- Type of test administered: Skin tests generally take longer than blood tests.
- Clinic procedures and scheduling: Wait times can add to the overall duration.
