Simultaneous sulfur hexafluoride and nitrogen multiple-breath washout (MBW) to examine inherent differences in MBW outcomes

Abstract

N₂ MBW results were higher than SF₆ MBW, with some of the largest differences reported to date being observed. The biggest impact was at the end of the washout and this was even the case when gases were washed out simultaneously. N₂ and SF₆ MBW results are inherently different and should be considered as independent measurements.