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Allergy Testing, IgE

Source Blood
Mnemonic Refer to Orderable Allergens for a list of allergens and mnemonics available for testing at CLS.

For allergens not on the lists, see Allergy Testing, Referred Out.
Specimen Requirements 1 x 3.5 mL gold top SST tube only is acceptable.

Minimum 0.2 mL blood or 0.1 mL serum for each allergen. Up to 10 allergens can be tested on one full SST tube.

Minimum Whole Blood Volumes for Microcollections

Specimen Handling Specific Allergen must be requested before testing will be performed
Additional Information For allergens not performed at CLS, see Allergy Testing, Referred Out.

Information for ordering physicians: the standard number of allowable allergen specific IgE antibody tests is 5 per patient/year. If the ordering physician is an allergy specialist (as approved by the Section of Clinical Immunology and Allergy) the number of allowable allergen specific IgE antibody tests is 10 per patient/year, which can be increased to 20 when approved by a laboratory physician/clinical chemist.
Testing Location Immunochemistry
Testing Frequency Monday to Friday
Alternate Name(s) ImmunoCap
Reference Interval

NEG       < 0.35 kU/L

A negative specific IgE AB allergy test should not be used on its own to reject a diagnosis of allergy.  It is possible for a patient to have significant allergy yet have a negative test.