Allergen, Food, Thyme IgE
Also known as: THYME
Use
The Allergen, Food, Thyme IgE test measures the concentration of IgE antibodies specifically directed against thyme allergens. These antibodies, when elevated, suggest sensitization to thyme, which could be associated with allergic reactions. Clinical correlation with the patient's history, physical examination, and potentially other allergy testing is recommended to determine the significance of the test results. Increasing IgE levels are reflective of increasing concentrations of allergen-specific IgE, though these concentrations may not correlate directly with the severity of clinical symptoms or results from skin testing.
Special Instructions
For optimal results, patients should avoid multiple encounters prior to testing to ensure the accuracy of allergen IgE levels.
Limitations
The presence of allergen-specific IgE antibodies indicates sensitization but does not always correlate with clinical allergy or anaphylaxis. Due to the significant variance in individual patient reactions, a negative result cannot rule out an allergy. The clinical relevance of IgE levels between 0.10 and 0.34 kU/L is undetermined, requiring specialist evaluation. There may be a lack of correlation between lab results and clinical history or responses during in vivo challenges with thyme allergens.
New York Approved
Methodology
Immunoassay (Fluorescent Enzyme Immunoassay)
Biomarkers
LOINC Codes
- 7737-0
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.25 mL
Container
ARUP Standard Transport Tube
Collection Instructions
Collect specimen using a serum separator tube. Separate serum from cells as soon as possible or within 2 hours of collection.
Storage Instructions
Refrigerated.
Causes for Rejection
Hemolyzed, icteric, or lipemic specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | 2 weeks |
| Frozen | 1 year |