How to Read Allergy Test Results?

Check the test type: skin prick, intradermal, blood IgE, or patch test

Identify the allergen name listed next to each result

For skin tests, compare the wheal size to the control

For blood tests, note the IgE level and the lab’s reference range

Look for positive, negative, or equivocal labels

Review the severity scale if provided

Compare results with your symptoms and exposure history

Note that a positive result means sensitization, not always a true allergy

Note that a negative result does not completely rule out an allergy

Ask your allergist to interpret borderline or unclear results

Follow the lab’s specific reporting method and units

Keep a copy of the full report for future reference

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