BIO 669 Section #3 Questions And Answers With
Verified Solutions (GRADED A+) Latest Update
2024/2025.
A patient has a history of emphysema and has hyperinflated lungs. Which of the following would be
TRUE regarding this patient? - ANSWER Increased lung compliance
The compliance within the apex of the lung of a standing person be ____ than the base of the lung -
ANSWER Greater than
In response to high alveolar PO2 (PaO2), which of the following will NOT occur? - ANSWER
Pulmonary artery vasoconstriction
The effect of oxygen saturation on carbon dioxide binding to hemoglobin is termed the ____ effect. -
ANSWER Haldane
The amount of quiet inhalation/exhalation in a typical breath is termed the: - ANSWER Tidal
volume
Your patient presents with a respiratory infection, localized pain on the left side of the chest,
combined with an audible friction rub heard with your stethoscope that just began the past few days.
Patient has decreased breath sounds and dullness to percussion to that area. A mediastinal shift was
seen on X-ray. Your most likely diagnosis is: - ANSWER A larger pleural effusion
Chronic inflammation of the bronchial wall, with destruction of the elastic and muscular components
best describes: - ANSWER Bronchiectasis
The experience of breathing discomfort, shortness of breath or air hunger upon lying in patients with
heart failure is termed: - ANSWER Orthopnea
Which of the following is NOT part of Virchow's triad in the development of thrombi and emboli? -
ANSWER Immune system activation
The pulmonary disease most associated with permanent enlargement of acini due to loss of elastic
tissue and inflammatory remodeling (without the obvious addition of connective tissue) with air
trapping is: (Hint could also be a result of apha 1-antitrypsin deficit) - ANSWER Emphysema
How is most of the CO2 transported in the blood? - ANSWER As bicarbonate that can be
converted back to CO2
Which of the following does NOT have cartilage as part of its structure? - ANSWER Respiratory
bronchioles
What effects would acidemia at the alveolar level have on the pulmonary artery? - ANSWER
Decreased blood flow (vasoconstriction) to that area
Which of the following is NOT part of the alveolar capillary membrane? - ANSWER Hyaline
cartilage
, What effect would decreased compliance have on ventilation? - ANSWER The increased
stiffness would make inspiration more difficult
Which of the following pulmonary conditions would not be considered as an Acue Lung Injury
(ALI)/Acute Respiratory Distress Syndrome (ARDS)? - ANSWER Aortic stenosis leading to left
sided heart failure and pulmonary dysfunction/hypoxemia
The space between the lungs that include the heart, esophagus, and the great vessels is termed -
ANSWER Mediastinum
Which of the following is TRUE regarding Acute Respiratory Syndrome (ARDS)? - ANSWER It
can cause severe pulmonary edema
A pulmonary embolus creating alveolar dead space will likely have which - ANSWER High V/Q
ratio
A 1 year old child presents with tachypnea, labored breathing and wheezing following onset of what
appears to be a cold/viral infection. The most likely diagnosis at this time is - ANSWER
Bronchiolitis
Pulmonary fibrosis is most likely to result in all of the following except - ANSWER Oxygen
toxicity
In response to low alveolar PO2 (PaO2) - ANSWER Vascular smooth muscle controlling flow
that that alveolus will constrict
Kussmaul breathing is best described as: - ANSWER Slightly increased ventilatory rate with
very large tidal volumes and no expiratory pause
Which of the following does not increase airway resistance (increase the work of breathing)? -
ANSWER Activation of the sympathetic nervous system effects on the airways
Someone with a diminished ventilation to their alveoli as a result of respiratory disease is most likely
to present with: - ANSWER Pulmonary hypertension
Development of right sided heart failure over time if untreated
Jugular venous distention
All of the above
Surfactant is important to respiration because it: - ANSWER Decreases surface tension and
decreases the force favoring collapse of the alveolus
The ventilation-perfusion ratio is the same in the lung apex as the lung base in a standing, normal
person: - ANSWER False
The effect of H+ on oxygen binding to hemoglobin is termed the _____ effect? - ANSWER Bohr
The pores of Kohn play a role in: - ANSWER Allowing air to pass from one alveoli to another,
allowing equal distribution of air
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