Allergen, Epidermals and Animal Proteins, Rat Epithelium IgE
Also known as: RAT EPI
Use
This test quantitatively measures IgE antibodies specific to rat epithelium allergens in the serum. It is primarily used to assess the presence of allergen-specific IgE to help diagnose allergic conditions related to exposure to rat epithelium. While an increased IgE level may suggest allergic sensitization, it does not always correlate with symptoms when exposed to the allergen.
Special Instructions
Multiple patient encounters should be avoided. Refer to 'Allergen Specimen Collection Instructions' at www.aruplab.com/testing/resources/specimen if ordering multiple allergens.
Limitations
Results in the range of 0.10-0.34 kU/L are intended for specialist use as the clinical relevance is undetermined. The test results may not correlate with the degree of in vivo clinical response or skin testing results due to external factors. Clinical correlation with patient history is essential for accurate interpretation. A negative test does not rule out the possibility of allergy or anaphylaxis.
FDA ApprovedNew York Approved
Methodology
Immunoassay (Fluorescent Enzyme Immunoassay)
Biomarkers
LOINC Codes
- 6224-0
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.25 mL
Container
ARUP Standard Transport Tube
Collection Instructions
Collect using a serum separator tube. Separate serum from cells ASAP or within 2 hours of collection.
Patient Preparation
Multiple patient encounters should be avoided.
Storage Instructions
Refrigerated.
Causes for Rejection
Hemolyzed, icteric, or lipemic specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | 2 weeks |
| Frozen | 1 year |