Allergen: White Hickory, IgE
| Abbrev Code: | AT15 | ||
| Order Code: | LAB1063 | Order Name: | Allergen White Hickory, IgE |
| Synonyms: | LHE LAB1715 | ||
| Methodology: | FEIA (by ImmunoCAP) | ||
| CPT Codes: | 86003 x1, 86003 x1 | ||
| Turnaround Time: | Performed Mon-Fri; results are reported within 4 days. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 1 mL |
| Minimum\Peds Volume: | 0.8 mL |
| Container: | Red or gold (gel) Alternate Containers: Red (no gel) |
| Causes for Rejection: | Gross hemolysis or gross lipemia. |
Processing and Shipping
| Specimen Processing: | Centrifuge and aliquot 0.5 mL, 0.3 mL minimum. Store in refrigerator. |
| Shipping Instructions: | Ship at refrigerated temperature. |
| Stability: | 14 days refrigerated (preferred); 90 days frozen |
| Test Performed at or Referral Lab | (Mayo) |
| Referral Lab number: | MAYO WHIC |
Interpretive
| Reference Range: |
Interpretation: Detection of IgE antibodies in serum (Class 1 or greater) indicates an increased likelihood of allergic disease as opposed to other etiologies and defines the allergens that may be responsible for eliciting signs and symptoms. The level of IgE antibodies in serum varies directly with the concentration fo IgE antibodies expressed as a class score of kU/L. |
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| Limitations: | Testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists, or in patients in whom the medical management does not depend upon identification of allergen specificity.
Some individuals with clinically insignificant sensitivity to allergens may have measurable levels of IgE antibodies in serum, and results must be interpreted in the clinical context. False positive results of IgE antibodies may occur in patients with markedly elevated serum IgE (>2500 kU/L) due to nonspecific binding to allergen solid phases. |
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| Use: | Detection of possible allergic responses to various substances in the environment such as animals, foods, grasses, house dust, mites, insects, insulin, molds, smuts, trees or weeds. Evaluation of hay fever, extrinsic asthma, atopic eczema or respiratory allergy. |
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