Allergen, Food, Lemon

Casandra

Casandra Test Code AR78070Version 1 (DRAFT)

Performing Lab

Lab ARUP LaboratoriesLab Test ID 0098270CPT Code 86003

Allergen, Food, Lemon

Also known as: LEMON

Clinical Use

Order Test

Use

This test measures the IgE antibody specific to lemon, helping to determine the potential for allergic reactions. Lemon allergies, like other food allergies, can elicit a variety of symptoms, ranging from mild to severe. The quantification of specific IgE antibodies can support clinicians in evaluating the likelihood of allergic reactions in patients with suspected lemon allergies and can be a useful component in comprehensive allergy assessments.

Special Instructions

Multiple patient encounters should be avoided when collecting specimens for this test. Ensure proper handling and separation of serum from cells as soon as possible, ideally within 2 hours of collection, to ensure the accuracy of the test results.

Limitations

Test results of 0.10-0.34 kU/L should be interpreted with caution as clinical relevance is undetermined, requiring specialist consultation. Higher IgE levels indicate increasing concentrations of allergen-specific antibodies but may not correlate directly with the severity of clinical symptoms or skin test results. Thus, results should be correlated with the patient's clinical history and reactivity to specific allergens. A negative result does not fully exclude the possibility of clinical allergy or anaphylaxis.

Test Details

FDA Approved

New York Approved

Methodology

Immunoassay (Fluorescent Enzyme Immunoassay)

Biomarkers

Lemon IgE

Protein

IgE • Expression • Quantitative (Continuous) (e.g., copies/mL, % expression)

LOINC Codes

Result Codes

6159-8

Result Turnaround Time

1-3 days

Specimen

Serum

Volume

0.5 mL

Minimum Volume

0.25 mL

Container

ARUP Standard Transport Tube

Collection Instructions

Separate serum from cells ASAP or within 2 hours of collection. Refer to 'Allergen Specimen Collection Instructions' at www.aruplab.com/testing/resources/specimen for multiple allergen orders.