Anaphylaxis following prick-by-prick testing with peanut.

Anaphylaxis due to prick-by-prick testing is a rare but potentially life-threatening complication. Personnel performing testing should be able to recognize and treat anaphylaxis. Adrenaline must be available. In high-risk patients with a history of anaphylaxis, specific igE with components and a basophile activation test is desirable before skin prick testing.