Heartsaver First Aid Part I Progress Indicator: Question 3 of 22 3.  Before going underground, what order should the following steps be completed in? Don apparatus Proceed to fresh air base Check team equipment for readiness to begin Check team members for readiness to begin Choices: 2, 1, 3, 4 4, 2, 3, 1 1, 4, 3, 2 3, 4, 2, 1 None of these options are in the correct order