Flight Paramedic questions with correct answers

What is diffusion? - Answer Movement of molecules from high to low concentration Where does gas exchange occur? - Answer alveolar-capillary membrane 4 Causes of poor diffusion at the alveolar-capillary membrane - Answer 1. Damage (Atelectasis) 2. Covered with fluid(Pneumonia/ARDS) 3. Insufficient inflation(hypoventilation/poor inspiratory maneuvers) 4. overstretched(High Pplat) Why do we need to ventilate properly? - Answer To regulate and maintain appropriate amounts of CO2 Co2 regulation second by second - Answer Carbonic acid buffer system What mechanisms produce CO2? - Answer Aerobic and anaerobic metabolism What mechanisms regulate CO2? - Answer 1. Being in an aerobic state 2. Blood flow to lungs 3. Proper diffusion 4. appropriate minute ventilation PaCO2 for hypoventilation - Answer Above 45 mmHg