Ascaris, IgE, Serum
Use
The Ascaris, IgE, Serum test is useful for diagnosing an allergy to Ascaris worms. It helps define the allergen responsible for triggering allergy symptoms, identifies allergens responsible for allergic responses or anaphylactic episodes, confirms sensitization before starting immunotherapy, and investigates allergen specificity related to insect venom, drugs, or chemical allergens.
Special Instructions
If not ordering electronically, complete the Allergen Test Request (T236) form and send it with the specimen.
Limitations
Testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists. It is also not helpful in patients where medical management does not depend on the identification of allergen specificity. Some individuals with insignificant clinical sensitivity may show measurable IgE levels, and false positives can occur in patients with very high serum IgE levels due to nonspecific binding.
FDA ApprovedNew York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 6022-8
- 6022-8
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL for every 5 allergens requested
Minimum Volume
For 1 allergen: 0.3 mL
Container
Preferred: Serum gel; Acceptable: Red top; Submission: 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 |