
Making allergy testing routine
Consolidate your specialty, allergy, and general testing with one of the industry’s most reliable solutions
The prevalence of allergic diseases has continued to increase in the industrialized world for more than 50 years and worldwide sensitization rates to one or more common allergens among school children are approaching 40–50%.1 A clinical history of skin, gastrointestinal, or respiratory symptoms suggestive of allergy often leads to allergen-specific IgE testing.
The IMMULITE® 2000/XPi 3gAllergy™–Allergen-specific IgE assay helps to enhance patient care with reliable results from a simple blood test that uses quality extracts thoroughly evaluated for potency and allergenic composition.
With the IMMULITE 2000/XPi Immunoassay System, scaling your allergy and specialty test offerings feels routine.
Increase confidence in allergy results
The 3gAllergy—Allergen-specific IgE assay uses third-generation chemiluminescent technology and proprietary liquid allergens that preserve their native conformational structure, maximizing binding and resulting in standardized, quantifiable results for informed decision making.
3gAllergy—Allergen-specific IgE assay sequence

Serum and liquid-specific allergens incubate with anti-ligand-coated polystyrene bead.

Ligand-labeled liquid allergens bind to serum IgE antibodies and to the anti-ligand-coated bead.

Alkaline phosphatase-conjugated monoclonal anti-IgE is added and binds to serum IgE.

A chemiluminescent substrate is added, and light is emitted to provide a quantitative IgE result.
3gAllergy—Allergen-specific IgE assay components
- Specific allergens and mixed allergen panels: When an allergic patient is tested, a reactive result may indicate a response to a specific allergen or a mix of allergens. Specific allergens and mixed allergen panels require the Universal Kit.
- Universal Kit: All specific allergens and mixed allergen panels run with the Universal Kit to provide a result from the patient sample. One master curve applies to all specific allergens and mixed allergen panels.
Improve operational efficiency
Improve productivity with a patented, high-capacity allergen wedge
Each allergen wedge can be customized with up to six user-defined, bar-coded allergen vials. As many as 23 wedges plus a universal reagent wedge fit on each carousel, for a total capacity of up to 138 allergens onboard at any time.
Minimize waste and eliminate errors
Reagent onboard stability of 90 days minimizes waste. Bar-coded allergens eliminate errors. All allergen information is scanned from the wedge.
Extensive allergy menu
Extensive menu of over 350 allergens, panels, and components across animals, drugs, dust, foods, grasses, insects, mites, molds, occupational, parasites, trees, and weeds.
Run allergy testing alongside your routine and specialty immunoassays
Consolidating multiple tests on a single, easy-to-use, and compact analyzer—including allergy and a wide range of specialty offerings—the IMMULITE 2000 XPi Immunoassay System makes it simple to scale your capabilities without disrupting regular, day-to-day operations.
Scientific webinars
The products/features (mentioned herein) are not commercially available in all countries. Due to regulatory reasons, their future availability cannot be guaranteed. Please contact your local Siemens Healthineers organization for further details.