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BIO669 EXAM #3 QUESTIONS WITH COMPLETE ANSWERS
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BIO669 EXAM #3 QUESTIONS WITH COMPLETE ANSWERS
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BIO669 EXAM #3 QUESTIONS WITHCOMPLETE ANSWERS
A patient has a history of emphysema and has hyper-inflated lungs. Which of the
following would be true? - Answer-Increased lung compliance
The compliance within the apex of the lung of a standing person would be ____ than the
base of the lung - Answer-Less than
The space between the lungs that include the heart, esophagus, and the great vessel is
termed - Answer-Mediastinum
Which of the following is tru regarding Acute Respiratory Distress Syndrome? - Answer-
It can cause severe pulmonary edema
Pulmonary fibrosis is most likely to result in all of the following except - Answer-Oxygen
toxicity
Emphysema results from - Answer-An infected plural effusion
A reduced oxygenation in the blood is termed - Answer-Hypoxemia
Along with respiratory bronchioles, the ____ is a thin walled balloon like structure that
acts as the primary unit of gas exchange - Answer-Alveolus
The most common feature as a result of hyperventilation is - Answer-Hypocapnia
The pores of Kohn play a role in - Answer-Allowing air to pass from one alveoli to
another, allowing equal distribution of air
What effect would acidemia at the alveolar have on the pulmonary artery - Answer-
Decreased blood flow (vasoconstriction)
While most alveolar perfusion is under control of local humoral conditions, widespread
decrease in PaO2 (alveolar O2) is likely to result in - Answer-Pulmonary arty
construction (pulmonary hypertension)
A pulmonary embolus creating alveolar dead space will likely have which of the
following effects? - Answer-High V/Q ratio
Severe Bronchospasm not responsive to the normal measures (beta agonist
bronchodilators) is best described as - Answer-Status asthmatics
All of the following are findings consistent with pulmonary fibrosis expect - Answer-
Increased lung compliance
, Which of the following does not increase airway resistance (increase the work of
breathing) - Answer-Activation of the sympathetic nervous system effects on the airway
The effect of H+ on oxygen binding to hemoglobin is termed the ___ effect - Answer-
Bohr
What happens to the functional residual capacity in COPD? - Answer-It's increased,
resetting the TV to a higher volume
Acidosis will _____ the affinity of oxygen to hemoglobin and thus would be considered a
___ shift in the oxyhemoglobin dissociation curve - Answer-Decrease, right
Which of the following is NOT part of Virchow's triad in the development of thrombi and
emboli? - Answer-Immune system activation
Which of the following statements is incorrect regarding tuberculosis? - Answer-
Tuberculosis typically presents as an acute onset and rapidly advancing disease
process
Which of the following signs/symptoms best fits a patient presenting with chronic
hypoxia as a result of pulmonary fibrosis? - Answer-Clubbing of the fingers
The main neural control center coordinating ventilation during quiet breathing is the -
Answer-Dorsal respiratory group - controls tidal volume
vasoconstriction of the pulmonary artery serving an area of lung will have what effect? -
Answer-Decreased blood flow to that area
What effect would decreased compliance have on ventilation? - Answer-The increased
stiffness would make inspiration more difficult
What helps to keep the expansion forces of the chest wall and the contracting forces of
the alveoli/lungs linked so that the lung doesn't collapse and the chest does not expand
further? - Answer-The negative pressure in the pleural cavity
Someone with a diminished ventilation to their alveoli as a result of respiratory disease
is most likely to present with:
A. Pulmonary HTN
B. Development of R sided heart failure
C. Jugular Venous distention
D. All of the above - Answer-D. All of the above
Atelectasis is caused by all of the following except:
A. Compression from tumor
B. Decreased surfactant
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