Orange IgE

The Orange IgE test is essential for diagnosing orange allergies by detecting specific IgE antibodies. It helps identify allergens causing symptoms like skin rashes and respiratory issues. Key aspects include:

- Methodology: Utilizes Fluorescence Enzyme Immunoassay (FEIA) for accurate results.
- Specimen Requirements: Needs 0.3 mL serum, stored at 2-8°C for up to 14 days.
- Turnaround Time: Results in 1-3 business days.
- Interpretation: IgE levels categorized from Class 0 (negative) to Class 6 (extremely high positive).

This test aids in diagnosis, defining allergens, and confirming sensitization before immunotherapy.

Understanding test results is crucial for managing allergies effectively. The Orange IgE test identifies specific IgE antibodies to orange allergens, aiding in diagnosis and treatment planning. Here's a quick guide to interpreting results:

- Class 0: <0.10 kU/L, negative.
- Class 0/1: 0.10-0.34 kU/L, equivocal.
- Class 1: 0.35-0.69 kU/L, low positive.
- Class 2: 0.70-3.49 kU/L, moderate positive.
- Class 3: 3.50-17.49 kU/L, high positive.
- Class 4-5: 17.50-99.99 kU/L, very high positive.
- Class 6: >99.99 kU/L, extremely high positive.

Results guide healthcare providers in confirming sensitization and planning immunotherapy.