Endotracheal suctioning is a frequently performed procedure in acute-care settings in hospitals. An assumption made by nurses is that saline facilitates suctioning. The purpose of this study is to describe when and how often saline is used and to assess the knowledge of nurses regarding the use of saline prior to suctioning. This modified replication study is based on the research of Schwenker, Ferrin, and Gift (1998). The study will be conducted in a 367-bed hospital in Elkhart, IN. Nurses will be recruited from adult intensive and progressive care units. A convenience sample of 50 registered nurses is anticipated. Schwenker et al.'s (1998) Suctioning Survey Tool will be used to collect data. Permission will be obtained from the Ball State University Institutional Review Board and from the participating hospital. Findings will provide information concerning endotracheal suctioning techniques.