Abstract
The diagnostics of occupational rhinitis is based on nasal provocation testing which proves the response of the nasal mucosa on suspected allergens. In most cases the active anterior rhinomanometry is used for evaluation of nasal flow and resistance in nasal provocation tests.
The utilization of the method of the acoustic reflection from airways has been studied since the seventies of the last century. Acoustic rhinometry is the examination based on the principle of comparison of the accidental acoustic impulse within the audible frequency zone with the reflection of response from the airways.
It gives the graphic and numeral information about the minimal cross-sectional area and its distance from the vestibule of nose and about total volume of the nasal cavity in two sections- from 0 to 22 mm and from 22 to 54 mm. The target of our paper is giving information about the other possibility of nasal patency monitoring and the presentation of the instrument, which makes it possible.