Question 270 · LEK · Food hypersensitivity
A 6-year-old boy demonstrated itchy maculopapular rash and nasal congestion twice after the ingestion of natural yogurt. The symptoms persisted up to several hours. The boy's parents suspect that their child has signs of allergy to cow milk protein. Which of the following tests would be the best to diagnose food allergy?
- A. skin tests with food allergens.
- B. concentration of serum specific-IgE antibodies against food allergens.
- C. double blind, placebo-controlled food challenge.
- D. total serum IgE concentration.
- E. atopy patch test with food allergens.
Hint
Choose the test that proves a clinical reaction while eliminating bias of both the patient and the observer.
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