Fig. 5
From: Basophil activation test: food challenge in a test tube or specialist research tool?
The basophil activation test can be useful in selected patients, in whom the combination of the clinical history and skin prick test (SPT) and/or specific IgE is inconclusive, before referring for oral food challenge. A positive BAT confirms the diagnosis of food allergy and allows to defer the performance of OFC. An equivocal or a negative BAT should be followed by OFC to clarify the diagnosis