Specific IgE – Rye Flour (f5)

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This test measures the level of specific Immunoglobulin E (IgE) to rye flour. It is used to detect rye allergy and assess the potential effectiveness of allergen-specific immunotherapy (ASIT).

  • The test can be taken 2 hours after the last meal.
  • No smoking for 3 hours before the test.
  • Avoid physical and emotional stress for 1 hour before the test.

Symptoms of a Rye Allergy (Can Resemble Allergic Rhinitis):

  • Swelling of the throat mucosa
  • Runny nose
  • Watery eyes
  • Fever
  • Elevated levels indicate that the condition is of allergic origin, and rye flour is a potential trigger.
  • Normal levels suggest no detectable IgE-mediated rye allergy, but further testing may be needed for non-IgE-mediated reactions.