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Bio669 Exam 3 Questions And Accurate Answers
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Bio669 Exam 3 Questions And Accurate AnswersA patient has a history of emphysema and has hyperinflated 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 true 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 a component of Virchow's triad in the development of
thrombi and emboli? - ANWER Immune system activation
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