Abstract
This is a preliminary study to examine the usefulness of a nasal provocation test with aspirin in the diagnosis of aspirin-induced asthma (AIA). The patients were provoked by various amounts of lysine acetylsalicylate (aspirin) in the nasal cavity. We were thereafter able to make a positive diagnosis based on the responses of the nasal symptoms (sneezing, rhinorrhea and nasal obstruction) within 10 minutes after the nasal provocation. Four out of 5 AIA patients were thus diagnosed to be positive. This test is easy to carry out, and may thnc become a useful diagnostic procedure for AIA.