Allergen, Food, Cranberry IgE

Casandra

Casandra Test Code AR70997Version 1 (DRAFT)

Performing Lab

Lab ARUP LaboratoriesLab Test ID 0098874CPT Code 86003

Allergen, Food, Cranberry IgE

Also known as: CRANBERRY

Clinical Use

Order Test

Use

The Allergen, Food, Cranberry IgE test is used to measure the levels of allergen-specific IgE antibodies in the blood to assess allergic sensitivity to cranberries. IgE antibodies are produced by the immune system in response to an allergen, and detecting their presence in the blood helps in evaluating allergic reactions. The test supports the diagnosis of allergies and aids allergists in understanding the patient's sensitization to cranberry allergens. However, the levels measured do not necessarily reflect the severity of symptoms when exposed to cranberries.

Special Instructions

Multiple patient encounters should be avoided to ensure accurate results. It is important to separate serum from cells as soon as possible, ideally within 2 hours of collection, to maintain specimen integrity before analysis. For cases involving multiple allergen testing, instructions are available on ARUP's website to ensure correct procedures are followed.

Limitations

While the test measures IgE specific to cranberries, the levels of IgE do not always correlate with the clinical severity of allergic reactions or the results of skin testing. Results in the 0.10-0.34 kU/L range are particularly uncertain and should be interpreted by specialists. A negative test does not rule out cranberry allergy or the potential for anaphylaxis. Therefore, results should be correlated with clinical history and in vivo responses to the allergen.

Test Details

New York Approved