text:  Blood pressure is steadily going down. It's noticeably lower than it was when we started. Death will be when it's zero. And if it's going to get to zero, the sooner the better, because that's the less total amount of time that the organs are deprived of oxygen. The team mills around, checking equipment, chatting. 30-minute mark, heart rate 106, blood pressure 84 over 40, MAP 55, respirations 33, saturating at 76%.