1. Following surgery, N.P. developed a mucus plug in a lobar bronchus that led to atelectasis. Excess mucus in the lobar bronchus caused the alveoli to_ and the intrapulmonary - pressure to a) inflate; increase b) deflate, increase c) inflate; decrease d) deflate; decrease How would atelectasis affect 0, saturation? How can this condition be treated? 2. In tension pneumothorax, air sucked in the pleural cavity caused a(n). intrapleural pressure. This caused the intrapleural pressure to be intrapulmonary pressure. than a) increase; higher b) decrease, higher c) increase; lower d) decrease; lower