This will be a cross-sectional study, conducted during regularly scheduled ACLS courses at Rush University Medical Center. Enrollment will be by random assignment as participants arrive for the ACLS course. Those that consent to the study will be informed that the investigator's study is to observe ACLS performance, but the exact parameters being measured will not be disclosed in an effort to mitigate any changes in behaviors.
During the course of the study, groups will be assigned sequentially, and the first group to participate will be termed as "Group 1". Within the group, each participant will be assigned a letter to identify the sequence of rotation with the skills. For example, the first participant in group 1 to perform manual ventilation will be assigned the study identity of "1A". The second person in the first group will be "1B", and so on.
During the ACLS megacode component of the ACLS training, each study participant will be given the opportunity to manually ventilate the simulated intubated adult patient, as per the normal rotation during a megacode. During the megacode, information will be collected via the NICO2 Respiratory Management System (Philips Respironics, Murrysville, Pennsylvania) that is attached to the endotracheal tube, which will be video recorded, as this system does not have function of data storage or downloaded. This is to assure each breath is captured so the study team can assure accuracy of data collection. None of the study participants will be video recorded.
At the completion of the study, each participant will be debriefed on their performance and informed of the true nature of the study; which is to evaluate respiratory rate and tidal volume delivery during manual ventilation to an intubated patient during an ACLS rescue attempt.