The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 51-year-old woman goes to respiratory function testing in order to evaluate her shortness of breath. She recently joined a walking program with her friends in order to lose weight; however, she noticed that she was not able to keep up with her friends during the program. She has a 60-pack-year history of smoking as well as hypertension well-controlled on medication. The following represent the parameters for this patient's respiratory anatomy and function:  Vital capacity (VC): 5,000 mL Inspiratory reserve volume (IRV): 2,500 mL Functional reserve capacity (FRC): 2,700 mL Residual volume (RV): 1,000 mL Upper airway volume: 100 mL Conducting airway volume: 125 mL  Inspired CO2 pressure (PiCO2): 1 mmHg Arterial CO2 pressure (PaCO2): 50 mmHg Expired CO2 pressure (PeCO2): 20 mmHg  Which of the following best represents the total volume of gas in this patient's airways and lungs that does not participate in gas exchange?   (A) 480 mL   (B) 600 mL   (C) 800 mL   (D) 1200 mL
['(A) 480 mL <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) 480 mL \n (B) 600 mL \n (C) 800 mL \n (D) 1200 mL <> possible answers', "  A 51-year-old woman goes to respiratory function testing in order to evaluate her shortness of breath. She recently joined a walking program with her friends in order to lose weight; however, she noticed that she was not able to keep up with her friends during the program. She has a 60-pack-year history of smoking as well as hypertension well-controlled on medication. The following represent the parameters for this patient's respiratory anatomy and function:\n\nVital capacity (VC): 5,000 mL\nInspiratory reserve volume (IRV): 2,500 mL\nFunctional reserve capacity (FRC): 2,700 mL\nResidual volume (RV): 1,000 mL\nUpper airway volume: 100 mL\nConducting airway volume: 125 mL\n\nInspired CO2 pressure (PiCO2): 1 mmHg\nArterial CO2 pressure (PaCO2): 50 mmHg\nExpired CO2 pressure (PeCO2): 20 mmHg\n\nWhich of the following best represents the total volume of gas in this patient's airways and lungs that does not participate in gas exchange? <> context@"]