The nasal provocation test in the diagnosis of allergic rhinitis. II. Comparison with other diagnostic tests.

We standardized the NPT by means of AAR, and in the present study, we compared this technique with skin testing and the RAST test. Using Alternaria tenuis and cat epithelium, the NPT was found to be more specific than skin testing; in the case of Phleum pratensis, no differences were observed. We conclude that the NPT is an excellent diagnostic technique.

The nasal provocation test: response patterns.

We studied a group of allergic patients by active anterior rhinomanometry. We performed the nasal provocation test (NPT) and we observed two kinds of responses. The Type I pattern consists of an increase in delta P and an increase in resistance.