Nsg 101 exam 6 Oxygenation UPDATED ACTUAL Questions and
CORRECT Answers
Define ventilation, perfusion, and diffusion in the context of Ventilation is the process of moving gases into and out of the lungs; perfusion is the
oxygenation. ability of the cardiovascular system to pump oxygenated blood to tissues; diffusion
is the exchange of respiratory gases in the alveoli and capillaries.
What is the primary difference between hypoventilation Hypoventilation occurs when alveolar ventilation is inadequate to meet oxygen
and hyperventilation? demands or eliminate CO2, whereas hyperventilation occurs when the lungs remove
CO2 faster than it is produced by cellular metabolism.
Define hypoxia and explain why it is considered a life- Hypoxia is inadequate tissue oxygenation at the cellular level; it is life-threatening
threatening condition. because cells require a constant supply of oxygen to function and survive.
What is the clinical significance of pink and frothy sputum? It is often a sign of pulmonary edema.
What does pulse oximetry measure? It provides a noninvasive estimate of arterial blood oxygen saturation (SaO2).
Define hemothorax. The accumulation of blood in the pleural space.
Define pneumothorax. The accumulation of air in the pleural space, which causes the lung to collapse.
Define empyema. A collection of pus in the pleural space.
Define pleural effusion. The accumulation of fluid in the pleural space.
When is oropharyngeal suctioning indicated? It is used when a patient is able to cough but is unable to clear secretions through
expectoration; suctioning is performed after the patient has coughed.
What is the primary difference between nasopharyngeal Nasotracheal suctioning is more invasive, requires a longer catheter, and is typically
and nasotracheal suctioning? used when other less invasive techniques have failed.
What is the purpose of an incentive spirometer? It encourages lung expansion by offering visual cues to the patient.
CORRECT Answers
Define ventilation, perfusion, and diffusion in the context of Ventilation is the process of moving gases into and out of the lungs; perfusion is the
oxygenation. ability of the cardiovascular system to pump oxygenated blood to tissues; diffusion
is the exchange of respiratory gases in the alveoli and capillaries.
What is the primary difference between hypoventilation Hypoventilation occurs when alveolar ventilation is inadequate to meet oxygen
and hyperventilation? demands or eliminate CO2, whereas hyperventilation occurs when the lungs remove
CO2 faster than it is produced by cellular metabolism.
Define hypoxia and explain why it is considered a life- Hypoxia is inadequate tissue oxygenation at the cellular level; it is life-threatening
threatening condition. because cells require a constant supply of oxygen to function and survive.
What is the clinical significance of pink and frothy sputum? It is often a sign of pulmonary edema.
What does pulse oximetry measure? It provides a noninvasive estimate of arterial blood oxygen saturation (SaO2).
Define hemothorax. The accumulation of blood in the pleural space.
Define pneumothorax. The accumulation of air in the pleural space, which causes the lung to collapse.
Define empyema. A collection of pus in the pleural space.
Define pleural effusion. The accumulation of fluid in the pleural space.
When is oropharyngeal suctioning indicated? It is used when a patient is able to cough but is unable to clear secretions through
expectoration; suctioning is performed after the patient has coughed.
What is the primary difference between nasopharyngeal Nasotracheal suctioning is more invasive, requires a longer catheter, and is typically
and nasotracheal suctioning? used when other less invasive techniques have failed.
What is the purpose of an incentive spirometer? It encourages lung expansion by offering visual cues to the patient.
