Specific Level of Allergen
IgE Class kU/L Specific IGE Antibody
--------- ------------ ---------------------
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 - 17.4 High Positive
4 17.5 - 49.9 Very High Positive
5 50 – 99.99 Very High Positive
6 >99.99 Very High Positive
Note that Viracor Eurofins includes an extra calibrator at 0.10 kU/L and uses it to
define an optional equivocal class.