Attach the regulator/flow meter to the valve stem using the two pin-indexing holes and make sure that the washer is in place over the larger hole, do not overtighten.
Crosses torso straps over the patient’s shoulders and secures to board; pads behind the patient’s head, filling voids; secures the patient’s head to the board using two cravats (forehead and chin).
Moves the patient to a long board by placing the long board next to the patient’s buttocks; lifts the patient onto the long board, maintaining C-spine stabilization.
Rescuer #2 removes the chin strap and places one hand at the patient’s occiput (base of helmet) and the other at the patient’s chin to ensure head/C-spine immobilization.
Rescuer #3 positions backboard beside the patient and kneels at the patient’s hips; grasps the patient’s hips, overlapping hands with Rescuer #2 and above the knee.
Rescuers #2 and #3 stand next to the patient, one on either side; Rescuer #2 stands on the right side of the patient, places one hand on the patient’s elbow and the other under the patient’s armpit and grasps the backboard slot above the patient’s shoulder. Rescuer #3 does the same on the other side of the patient.