Flight Paramedic Questions & Answers (Graded A)

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 PaCO2 for hyperventilation - ANSWER-Less than 35 mmHg For every change in CO2 by 10 mmHg, you will have a corresponding change in pH by _____ in the opposite direction - ANSWER-0.08