Shrimp, IgE, Serum
Use
This test is useful for establishing a diagnosis of an allergy to shrimp and defining the allergen responsible for eliciting signs and symptoms. It helps identify allergens responsible for allergic response and/or anaphylactic episode, to confirm sensitization prior to beginning immunotherapy, and to investigate the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens. Detection of IgE antibodies in serum indicates an increased likelihood of allergic disease.
Special Instructions
For ordering this test, if not done electronically, complete, print, and send an Allergen Test Request form (T236) with the specimen.
Limitations
Testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists or in patients in whom the medical management does not depend upon identification of allergen specificity. Some individuals with clinically insignificant sensitivity might still have measurable levels of IgE antibodies, and false-positive results can occur in patients with markedly elevated serum IgE (>2500 kU/L) due to nonspecific binding.
New York Approved
Methodology
Immunoassay (Fluorescence Enzyme Immunoassay (FEIA))
Biomarkers
LOINC Codes
- 6246-3
- 6246-3
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
0.3 mL
Container
Preferred: Serum gel; Acceptable: Red top
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 |