Mushroom, IgE, Serum
Use
Establishes the diagnosis of an allergy to mushroom by defining allergens responsible for eliciting signs and symptoms. It identifies allergens responsible for allergic responses or anaphylactic episodes, confirms sensitization before immunotherapy, and investigates the specificity of allergic reactions to insect venom, drugs, or chemical allergens. IgE antibody testing might not be useful for patients previously treated with immunotherapy to gauge residual clinical sensitivity or for those where medical management is not contingent on allergen specificity.
Special Instructions
Centrifuge and aliquot serum into a plastic vial. If not ordered electronically, complete and send an Allergen Test Request (T236) with the specimen.
Limitations
Some individuals with clinically insignificant sensitivity to allergens might have measurable levels of IgE antibodies in serum, potentially causing diagnostic confusion. False-positive results may arise in patients with markedly elevated serum IgE (>2500 kU/L) due to nonspecific binding to allergen solid phases.
New York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 6848-6
- 6848-6
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 for 1 allergen
Container
Serum gel preferred; red top acceptable; submission in plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Causes for Rejection
Gross hemolysis and gross lipemia are acceptable.
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |