Test Name: Allergen – Cefaclor by EIA, Serum Sample Type: Serum Method: Enzyme Immunoassay (EIA)
Test Overview
The Allergen – Cefaclor by EIA test measures specific IgE antibodies against cefaclor, a second-generation cephalosporin antibiotic. It helps identify IgE-mediated allergic sensitization to cefaclor in individuals who may experience allergic reactions after exposure to this medication. Cefaclor is a recognized cause of immediate hypersensitivity reactions, including urticaria, angioedema, and anaphylaxis.
When is this Test Recommended?
History of allergic reactions after taking cefaclor
Suspected drug-induced hypersensitivity
Hives, itching, rash, or swelling following antibiotic use
Assessment of possible antibiotic allergy before future treatment
Evaluation of unexplained immediate allergic reactions
Clinical Significance
Detection of cefaclor-specific IgE antibodies supports the diagnosis of an IgE-mediated cefaclor allergy. Positive results should always be interpreted along with the patient's clinical history and symptoms, as laboratory findings alone do not confirm clinical allergy.
Symptoms Associated with Cefaclor Allergy
Skin rash or hives
Itching
Facial or lip swelling
Wheezing or breathing difficulty
Dizziness
Anaphylactic reactions in severe cases
Preparation
No fasting or special preparation is required.
Reporting
Results are typically reported as specific IgE levels against cefaclor and interpreted by the treating physician in conjunction with clinical findings.