Allergy

Allergy blood tests, also known as serological allergy tests, detect specific allergens triggering allergic reactions by measuring Immunoglobulin E (IgE) levels in a blood sample drawn from the patient's arm. There are two main types: Specific IgE Tests, identifying elevated IgE levels in response to particular allergens like pollen, pet dander, or foods, and Total IgE Tests, measuring overall IgE levels regardless of specific allergens. These tests are especially useful when skin testing isn't feasible or for patients with conditions like severe eczema. While results need careful interpretation alongside clinical history and symptoms, allergy blood tests play a crucial role in diagnosing allergies, guiding treatment plans, and implementing allergen avoidance strategies or immunotherapy.