Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Classification of the response to hyperosmolar to 4.5% saline in terms of the provoking dose of aerosol required to induce a 15% fall in FEV1. The delivered dose is cumulative and is calculated by dividing the total dose delivered over the time of the challenge. For normal subjects, the mean plus 1 SD is shown. Reproduced with permission from (2) with data for normal subjects from (156).
