TABLE 1 General Procedure (in minutes before and after scenario start) -90 Check-in, med screen, consent -70 Symbology and NAIMES training -35 Catheter insertion -10 Blood draw, BP, pulse, temp -5 Blood draw, BP, pulse, temp -3 Current situation scenario brief 0 Enter chamber (either 4 [degrees] C or 22 [degrees] C) - begin NAIMES 40 Pause NAIMES, blood draw, BP, pulse, temp 44 Resume NAIMES 58 Complete scenario, exit chamber 70 Complete questionnaire and workload assessment 95 Blood draw, BP, pulse, temp, remove catheter
Participants next began 20 min of scenario training, which familiarized them with button inputs, feedback characteristics, and the procedural details of the NAIMES subtasks.
Because of the similarity of the symbol recognition, monitoring, and scenario-following tasks to tasks found within CIC (Osga, 1989), participants uniformly had no trouble adapting to NAIMES tasks and control features.
After the situation briefing, the participant entered either the 4 [degrees] C or 22 [degrees] C chamber and started the NAIMES scenario.
Computer problems prevented 4 of the 24 participants (3 cold-stressed, 1 ambient temperature) from finishing the NAIMES task, though their physiologic data were salvaged and analyzed if possible.