KIT FOR PERFORMING A BRONCHIAL CHALLENGE TEST WITH METHACHOLINE AND DEVICE CONTAINING METHACHOLINE

摘要

A kit to perform the bronchial challenge test with methacholine comprising a device for delivering a metered amount of an atomized fluid and a methacholine solution or suspension. The delivery device comprises a chamber (4) for containing the fluid, a replaceable or collapsible reservoir (10), a spring (6) for retaining a predetermined amount of energy and applying it via a piston (3) to the fluid contained in the chamber so as to subject the fluid to an increase in pressure from a lower pressure to a higher pressure so as so as to permit delivery of the fluid from the chamber at high pressure. The device also comprises atomizing means (22) for atomizing the fluid delivered from the chamber.