GMS6402 Medical Pulmonary Physiology Exam Questions With 100% Correct Answers 2026/2027 (10pages)

1. The vast majority of the total surface area of the lung is found in the:correct answer: alveoli 2. All of the following can be measured via spirometry except:correct answer: Functional residual capacity (FRC) 3. What is the muscle that is used for expiration?:correct answer: External obliques 4. What is the transpulmonary pressure if pleural pressure is -7 cm H2O and alveolar pressure is -3 cm H2O?:correct answer: +4 cm H2O 5. Lung compliance test indicates that a 3 cm H2O change in transpulmonary pressure generates a 0.9 L change in lung volume. What is this patient's lung compliance?:correct answer: 0.3 L of air/cm H2O 6. Airwayresistance across a set of airways is lowest underwhat conditions?- :correct answer: Airway radius is large and length of the tube is small 7. As the lungs fill with air and we move from a low lung volume to a higher lung volume, airway resistance will:correct answer: Decrease exponentially 8. A patient performs an expiratory forced vital capacity maneuver. His FVC is 2 L and his FEV1 is 1 L. Based on these numbers, you would predict this patient suffers from what?:correct answer: Obstructive lung disease 2 / 10 9. When at sea level and breathing room air,the partial pressure of O2 in inspired air is what?:correct answer: 160 mmHg 10. A patient begins to hyperventilate while sitting in a clinic on Miami Beach and breathing room air. Over the ensuing 1 minute, his PaCO2 drops to 20 mmHg.What is his PaO2 at that moment in time?:correct answer: 125 mmHg 11. WithrespecttothepathofO2diffusion,theproperorder for themovement of oxygen across the pulmonary capillary membrane is:correct answer: alveolar epithelium, interstitial space, capillary basement membrane, blood 12. When a gas in the blood such as oxygen fails to reach diffusion equilib- rium with the alveolar air as it leaves the pulmonary capillary bed is said to be:correct answer: diffusion limited 13. Undernormal physiological conditions,the max capacity ofO2thatHb can carry is approx:correct answer::correct answer: 200 mL per day 14. Which of the following will increase the content of arterial oxygen:correct answer: increased hemoglobin concentration 15. Bloodgas analysis:correct answer:partialpressure ofoxygen inarterial blood=60mmHg, oxygen content = 18 mls O2/dL of blood.What is percent hemoglobin sat of patient?:correct answer: 90. Arterial blood gas is ordered and the following values are obtained; Hb = 17 g/dL, hemoglobin sat = 100%, PaO2 = 200 mmHg. What is content of total oxygen in arterial blood sample?:correct answer: 23.38 mls O2/dL of blood