Allergen, Food, Casein
Also known as: CASEIN
Use
This test measures the level of casein-specific IgE in the blood using Quantitative ImmunoCAP Fluorescent Enzyme Immunoassay. It helps in assessing the likelihood of an allergic reaction to casein, a protein found in milk. The test's results should be interpreted in conjunction with the patient's clinical history and in vivo reactions. Allergen results in the range of 0.10-0.34 kU/L are intended for specialist use as the clinical relevance is undetermined.
Special Instructions
Multiple patient encounters should be avoided during testing. It's essential to separate serum from cells as soon as possible or within 2 hours of collection to ensure accurate results. Ensure transportation of samples is refrigerated to maintain integrity.
Limitations
Although quantitative increases in allergen-specific IgE reflect increasing concentrations, they may not correlate precisely with the degree of clinical response. A negative result does not rule out the presence of a clinical allergy or even anaphylaxis. The correlation with clinical history and in vivo reactivity is crucial for accurate diagnosis.
FDA ApprovedNew York Approved
Methodology
Immunoassay (Fluorescent Enzyme Immunoassay)
Biomarkers
LOINC Codes
- 6062-4
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
Separate serum from cells ASAP or within 2 hours of collection. For multiple allergen orders refer to 'Allergen Specimen Collection Instructions'.
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 |