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Penicilloyl G (c1) IgE details

What Penicilloyl G (c1) IgE shows

When penicillin G breaks down in the body, it forms penicilloyl groups that attach to your own proteins, and this major determinant is what most penicillin IgE antibodies recognize. This test measures IgE antibodies to penicilloyl G to help assess a suspected penicillin allergy. A positive result suggests IgE sensitization to penicillin and a higher chance of an allergic reaction. However, IgE levels can fall over time after a reaction, and the test does not cover every allergenic part of penicillin, so a negative result does not exclude allergy. Results are interpreted by a clinician, often with skin testing or a supervised challenge.

Tests that include Penicilloyl G (c1) IgE

Labcorp Not offered
Labcorp Not offered
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