Allergen, Tree, Bald Cypress IgE

Also known as: CYPRESS B

Clinical Use

Use

This test measures the level of specific IgE antibodies to the Bald Cypress tree allergen (Cypress B). It is used to assess allergic sensitization in patients suspected of having allergies to the Bald Cypress tree. Quantitative results aid in the investigation of allergic disease and are particularly relevant when evaluating symptoms associated with exposure to this specific allergen. The test results provide a probability of IgE-mediated clinical reaction based on class scoring, ranging from 'No significant level detected' to 'Very high,' which correlates with increasing concentrations of allergen-specific IgE.

Special Instructions

Not provided.

Limitations

The concentrations of allergen-specific IgE detected by this test may not correlate directly with the degree of clinical response or skin testing results when challenged with the specific allergen. The clinical relevance of results in the range of 0.10-0.34 kU/L remains undetermined and necessitates specialist input. The test is not FDA-cleared or approved, and it is crucial to interpret the results in the context of the patient's clinical history and exposure to the allergen. This limits its standalone diagnostic utility without further clinical correlation.

Test Details

New York Approved

Methodology

Immunoassay (Quantitative ImmunoCAP Fluorescent Enzyme Immunoassay)

Biomarkers

Bald Cypress IgE

Protein

IgE Level

Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)

LOINC Codes

Result Codes

7272-8 - Bald Cypress IgE Qn

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. For multiple allergen orders refer to the 'Allergen Specimen Collection Instructions' at www.aruplab.com/testing/resources/specimen.