GMS6402: Medical Pulmonary Physiology Exam Questions With 100% Correct Answers 2024
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GMS
GMS6402: Medical Pulmonary Physiology
Exam Questions With
100% Correct Answers 2024
The vast majority of the total surface area of the lung is found in the - answeralveoli
All of the following can be measured via spirometry except - answerFunctional residual
capacity (FRC)
What is the muscle ...
GMS6402: Medical Pulmonary Physiology Exam Questions With 100% Correct Answers 2024 The vast majority of the total surface area of the lung is found in the - answer✔✔alveoli All of the following can be measured via spirometry except - answer✔✔Functional residual capacity (FRC) What is the muscle that is used for expiration? - answer✔✔External obliques What is th e transpulmonary pressure if pleural pressure is -7 cm H2O and alveolar pressure is -3 cm H2O? - answer✔✔+4 cm H2O 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 patien t's lung compliance? - answer✔✔0.3 L of air/cm H2O Airway resistance across a set of airways is lowest under what conditions? - answer✔✔Airway radius is large and length of the tube is small As the lungs fill with air and we move from a low lung volume to a higher lung volume, airway resistance will - answer✔✔Decrease exponentially 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? - answer✔✔Obstructive lung disease When at sea level and breathing room air, the partial pressure of O2 in inspired air is what? - answer✔✔160 mmHg A patient begins to hyperventilate while sitting in a clinic on Miami Beach and breathing room air. Over the en suing 1 minute, his PaCO2 drops to 20 mmHg. What is his PaO2 at that moment in time? - answer✔✔125 mmHg With respect to the path of O2 diffusion, the proper order for the movement of oxygen across the pulmonary capillary membrane is - answer✔✔alveolar epit helium, interstitial space, capillary basement membrane, blood When a gas in the blood such as oxygen fails to reach diffusion equilibrium with the alveolar air as it leaves the pulmonary capillary bed is said to be - answer✔✔diffusion limited Under normal physiological conditions, the max capacity of O2 that Hb can carry is approx: - answer✔✔200 mL per day Which of the following will increase the content of arterial oxygen - answer✔✔increased hemoglobin concentration Blood gas analysis: partial pressure of oxygen in arterial blood = 60 mmHg, oxygen content = 18 mls O2/dL of blood. What is percent hemoglobin sat of patient? - 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? - answer✔✔23.38 mls O2/dL of blood A patient's arterial blood gas indicates that her PaCO2 in 55 mmHg. What can you conclude about her ventilation state? - answer✔✔she is hypoventilating A post -op patient is still unconscious, but is receiving supplemental oxygen via a mask device. An ABG indicates that pH = 7.31, PaO2 = 155 mmHg, PaCO2 = 82 mmHg, HCO30 = 26 mEq/L. What is true? - answer✔✔Patient is acidotic HCO3 - is normal PaCO2 is elevated With respect to the pulmonary circulatory system overall compliance of the system is - answer✔✔high In the case of severe embolism, over time the gas comp of alveoli will become - answer✔✔150 mmHg O2; 0 mmHg CO2 Regarding pulmonary edema (PE), what is true ? - answer✔✔PE is characterized by increased fluid in the interstitial space Oxygen therapy can be effective during early stage PE PE is characterized by decreased Dl - Decreased gas diffusion with PE
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