Laboratory Services

Penicillin G, IgE, Serum

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Updated Test Information:

Test Description
Penicillin G, IgE, Serum
Synonym(s)

Penicilloyl G, Intravenous Penicillin, Penicillin, Benzylpenicilloyl

Test ID
PBPO
General Information

Establishing a diagnosis of an allergy to penicillin G


Defining the allergen responsible for eliciting signs and symptoms


Identifying allergens:
-Responsible for allergic disease and/or anaphylactic episode
-To confirm sensitization prior to beginning immunotherapy
-To investigate the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens

Specimen Type

Serum

Specimen Requirements

Preferred: Red top
Acceptable: Serum gel
Specimen Volume: 0.5 mL

Minimum Sample Volume

0.3mL

Stability

Room Temperature: Unacceptable
Refrigerated (preferred): 14 days
Frozen: 90 days

Methodology

Fluorescence Enzyme Immunoassay (FEIA)

Estimated TAT

1-3 days

Testing Schedule

Monday-Friday

CPT Code(s)

86003

Reference Range

Detection of IgE antibodies in serum (Class 1 or greater) indicates an increased likelihood of allergic disease as opposed to other etiologies and defines the allergens that may be responsible for eliciting signs and symptoms.

The level of IgE antibodies in serum varies directly with the concentration of IgE antibodies expressed as a class score or kU/L.

Performing Lab

Mayo Clinic

LOINC Code(s)

6851-0

Additional Information