GMS6402 Medical Pulmonary Physiology Exam
Questions With 100% Correct Answers 2024
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 resid-
ual 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. Airway resistance across a set of airways is lowest under what 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
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, 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.With respect to the path of O2 diffusion, the proper order for the movement 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. Under normal physiological conditions,the max capacity of O2 that Hb 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:
in- creased hemoglobin concentration
15. Blood gas analysis:correct answer:partial pressure of oxygen in arterial blood = 60
mmHg, oxygen content = 18 mls O2/dL of blood. What is percent hemoglobin sat of
patient?:correct answer: 90%
16.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
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Questions With 100% Correct Answers 2024
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 resid-
ual 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. Airway resistance across a set of airways is lowest under what 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
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, 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.With respect to the path of O2 diffusion, the proper order for the movement 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. Under normal physiological conditions,the max capacity of O2 that Hb 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:
in- creased hemoglobin concentration
15. Blood gas analysis:correct answer:partial pressure of oxygen in arterial blood = 60
mmHg, oxygen content = 18 mls O2/dL of blood. What is percent hemoglobin sat of
patient?:correct answer: 90%
16.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
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