Referred Tests
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Test ID: FCCA3
Cashew Component rAna o 3
Clinical Information 
Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test
This assay is used to detect allergen specific-IgE using the ImmunoCAP® FEIA method. In vitro allergy testing is the primary testing mode for allergy diagnosis.
Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.
<0.10 kU/L
Interpretation Provides information to assist in interpretation of the test results
| Class | IgE (kU/L) | Comment |
| 0 | <0.10 | Negative |
| 0/1 | 0.10 - 0.34 | Equivocal/Borderline |
| 1 | 0.35 - 0.69 | Low Positive |
| 2 | 0.70 - 3.49 | Moderate Positive |
| 3 | 3.50 - 17.49 | High Positive |
| 4 | 17.50 - 49.99 | Very High Positive |
| 5 | 50.00 - 99.99 | Very High Positive |
| 6 | >99.99 | Very High Positive |
Clinical Reference Recommendations for in-depth reading of a clinical nature
Borja J et al. Anaphylaxis from Brazil nut. Allergy 54, 1999 / 1004-1013. Clark A et al. Cashew nut causes more severe reactions than peanut: case-matched comparison in 141 children. Allergy 2007; 62(8): 913-6. Davoren M et al. Cashew nut allergy is associated with a high risk of anaphylaxis. Arch Dis Child 2005; 90(10): 1084-5. Egger m et al. The Role of Lipid Transfer Proteins in Allergic Diseases. Curr Allergy Asthma Rep 2010; 10:326-335. Masthoff L et al. A systematic review of the effect of thermal processing on the allergenicity of tree nuts. Allergy. 2013; 68: 983-993. Pastorello E et al. Lipid transfer protein and vicilin are important walnut allergens in patients not allergic to pollen. J Allergy Clin Immunol 2004; 114940: 908-14. Robotham J et al. Ana o 3, an important cashew nut (Anacardium occidentale L.) allergen of the 2S albumin family. J Allergy Clin Immunol. 2005; 115(6): 1284-90. Rosenfeld L et al. Walnut Allergy in Peanut-Allergic Patients: Significance of Sequential Epitopes of Walnut Homologous to Linear Epitopes of Ara h 1, 2 and 3 in Relation to Clinical Reactivity. Int Arch Allergy Immunol. 2012; 157: 238-245. Roux K et al. Tree nut allergens. Int Arch Allergy Immunology 2003; 131: 234-244. Wang F et al. Ana o 2, a major cashew (Anacardium occidentale L.) nut allergen of the legumin family. Int Arch Allergy Immunol. 2003 Sep: 132(1): 27-39. www.phadia.com