RD - Commission on Dietetic Registration (CDR) Practice Test

What is a crucial requirement for diagnosing food hypersensitivity?

1. Conducting a food challenge

2. Documenting atopic dermatitis

3. Using an elimination diet for several weeks

4. Verifying the specific food causing the reaction

The correct answer is: Verifying the specific food causing the reaction

Verifying the specific food causing the reaction is essential for diagnosing food hypersensitivity because food hypersensitivity can manifest in various ways, including allergic reactions and intolerance symptoms. Identifying the exact food item responsible for the adverse reaction helps to establish a clear diagnosis and implement appropriate dietary changes. Once a specific food has been verified as the cause, healthcare providers can guide patients on how to avoid that particular food, educate them about label reading, and provide alternatives to maintain nutritional adequacy. This step is vital because misidentifying the food can lead to unnecessary dietary restrictions or missed diagnoses of other potential allergens. Thus, confirming the specific food involved is a fundamental aspect of the diagnostic process for food hypersensitivity. While conducting a food challenge, documenting atopic dermatitis, and using an elimination diet can all be part of the broader approach to understanding and managing food hypersensitivity, they do not directly confirm the specific food trigger. These methods can support the diagnosis but rely on the initial verification of what food is causing the reactions.