Thyme, IgE, Serum
Use
This test is utilized for establishing the diagnosis of an allergy to thyme and defining the specific allergen responsible for symptoms. It aids in identifying allergens responsible for an allergic response or anaphylactic episode. Additionally, it confirms sensitization prior to beginning immunotherapy and investigates allergen specificity in reaction to insect venom, drugs, or chemical allergens. Testing is not recommended for patients previously treated with immunotherapy to gauge residual clinical sensitivity or those where medical management does not rely on allergen specificity identification.
Special Instructions
If not ordering electronically, complete and send the Allergen Test Request form with the specimen. Preferred collection container is Serum gel; acceptable is Red top. The specimen should be centrifuged and serum aliquoted into a plastic vial.
Limitations
IgE antibody testing may yield false-positive results in patients with markedly elevated serum IgE (>2500 kU/L). Some individuals with clinically insignificant sensitivity may show measurable IgE levels, requiring interpretation within a clinical context.
New York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 7737-0
- 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
0.3 mL (minimum for 1 allergen)
Container
Plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Causes for Rejection
Gross hemolysis: OK; Gross lipemia: OK
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |