Whey
Use
The Whey test is used to detect the presence of specific IgE antibodies to whey in the patient's serum. This test is important for diagnosing and managing allergies, particularly in patients suspected of having an allergy to whey proteins, which are commonly found in milk and dairy products. Identifying specific IgE antibodies helps in confirming allergic sensitization and aids healthcare providers in identifying allergic triggers, facilitating dietary management and avoidance of allergens.
Special Instructions
The test requires serum collected in a red-top tube or gel-barrier tube. It is important to ensure the correct volume of 0.2 mL is submitted to avoid rejection. The stability of the specimen should be maintained at room temperature for up to 14 days, refrigerated for up to 14 days, or frozen for up to 3 months with stable freeze/thaw cycles up to three times.
Limitations
While this test is sensitive for detecting specific IgE antibodies to whey, it may not identify all protein components responsible for allergic reactions. Positive results indicate sensitization to whey, but clinical correlation with patient history and symptoms is essential for accurate diagnosis. False positives or negatives may occur, and the test does not measure non-IgE mediated reactions or intolerances to dairy. Additional confirmatory tests may be necessary in the case of unexpected results or complex allergy presentations.
Methodology
Immunoassay (Thermo Fisher ImmunoCAP®)
Biomarkers
LOINC Codes
- 7774-3
- 7774-3
Result Turnaround Time
3-5 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.2 mL
Minimum Volume
Not provided
Container
Red-top tube or gel-barrier tube
Storage Instructions
Room temperature
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 3 months |