Reference Range

REFERENCE INTERVAL: Allergen, Interpretation

Less than 0.10 kU/L.......Class 0......No significant level detected
0.10-0.34 kU/L............Class 0/1....Clinical relevance undetermined
0.35-0.70 kU/L............Class 1......Low
0.71-3.50 kU/L............Class 2......Moderate
3.51-17.50 kU/L...........Class 3......High
17.51-50.00 kU/L..........Class 4......Very High
50.01-100.00 kU/L.........Class 5......Very High
Greater than 100.00 kU/L..Class 6......Very High

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.