Penicillium chrysogenum, IgE, Serum
Use
This test is useful for establishing a diagnosis of an allergy to Penicillium chrysogenum. It is helpful in defining the allergen responsible for eliciting signs and symptoms and can be used to identify allergens responsible for allergic responses or anaphylactic episodes. Additionally, it can confirm sensitization prior to beginning immunotherapy and investigate the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens.
Special Instructions
For optimal use, a serum specimen is required. Ensure that the serum is centrifuged and aliquoted into a plastic vial. The specimen volume required is 0.5 mL for every 5 allergens requested, and a minimum volume of 0.3 mL is needed for testing one allergen. Use a serum gel as preferred or a red top as acceptable collection container/tube. Submission is in a plastic vial.
Limitations
Testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists, or in patients where medical management does not depend upon allergen identification. False-positive results can occur in patients with elevated serum IgE due to nonspecific binding. Test results must be interpreted within the clinical context as individuals with clinically insignificant sensitivity may still show measurable IgE levels.
New York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 6212-5
- 6212-5
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
Plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |