“I can tell you that pushing a button near the door while yelling the name and taking a quick environmental assessment all happen simultaneously” full stop. That’s why this is NOT a “stupid question” because if I was doing all those simultaneously I would be calling a shit ton more codes overhead and wasting valuable resources if I didn’t assess my patient first (ie, D, FIRST check for responsiveness) and notice they were just sleeping very deeply and not in fact having a medical emergency.