Ordering Recommendation
Mnemonic
Methodology
Quantitative ImmunoCAP Fluorescent Enzyme Immunoassay
Performed
Sun-Sat
Reported
1-3 days
New York DOH Approval Status
Specimen Required
Multiple patient encounters should be avoided.
Serum separator tube. Multiple specimen tubes should be avoided.
Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum in an ARUP Standard Transport Tube. (Min: 0.3 mL)
Refrigerated.
Hemolyzed, icteric, or lipemic specimens.
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year
Reference Interval
Test Number |
Components |
Reference Interval |
||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Immunoglobulin E |
|
|||||||||||||||||||||||
Allergen, Staphylococcal Enterotoxin B | Less than or equal to 0.34 kU/L | |||||||||||||||||||||||
Allergen, Staphylococcal Enterotoxin A | Less than or equal to 0.34 kU/L |
Interpretive Data
Allergen results of 0.10-0.34 kU/L are intended for specialist use as the clinical relevance is undetermined. Even though increasing ranges are reflective of increasing concentrations of allergen-specific IgE, these concentrations may not correlate with the degree of clinical response or skin testing results when challenged with a specific allergen. The correlation of allergy laboratory results with clinical history and in vivo reactivity to specific allergens is essential. A negative test may not rule out clinical allergy or even anaphylaxis.
Reporting Range (reported in kU/L) | Probability of IgE Mediated Clinical Reaction | Class Scoring |
---|---|---|
Less than 0.10 | No significant level detected | 0 |
0.10-0.34 | Clinical relevance undetermined | 0/1 |
0.35-0.70 | Low | 1 |
0.71-3.50 | Moderate | 2 |
3.51-17.50 | High | 3 |
17.51 - 50.00 | Very high | 4 |
50.01 - 100.00 | Very high | 5 |
Greater than 100.00 | Very high | 6 |
FDA
Note
Allergens included: Staphylococcus aureus A and Staphylococcus aureus B.
Hotline History
Hotline History
CPT Codes
86003 x2; 82785
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0050345 | Immunoglobulin E | 19113-0 |
0092588 | Allergen, Staphylococcal Enterotoxin B | 25822-8 |
0092590 | Allergen, Staphylococcal Enterotoxin A | 25821-0 |