wo macht man einen allergietest — which blood markers matter?

Allergy tests are typically performed by allergists, dermatologists, or primary care physicians. The key blood markers include specific IgE against individual allergens (e.g., pollen, foods), total IgE, eosinophil count in the complete blood count, and tryptase if mast cell disorders are suspected. The basophil activation test (BAT) is also used in specialized labs. The provided context contains no specific allergy blood markers – it covers DNA tests for metabolism, caffeine, or vitamin D, which are irrelevant for allergy diagnosis. Direct-to-consumer genetic tests claiming to predict allergies are not scientifically validated. The evidence for these blood markers comes from clinical practice and guidelines, not from the sources given here. Caveat: A positive IgE level alone does not prove clinical allergy – correlation with symptoms is essential.