18 Questions
What is the primary consequence of increased pulmonary vascular permeability in acute respiratory distress syndrome?
Loss of aerated lung tissue
What is the primary criterion for diagnosing respiratory failure in the Berlin Classification of ARDS?
Hypoxemia with PEEP > 5 cm H2O
What is the characteristic timing of ARDS according to the Berlin Classification?
Within 1 week of a known clinical insult or new or worsening respiratory symptoms
What is the definition of moderate ARDS according to the Berlin Classification?
PaO2/FiO2 between 100-200 mmHg
What is the characteristic radiographic feature of ARDS according to the Berlin Classification?
Bilateral opacities – not fully explained by effusions, lobar/lung collapse, or nodules
What is the primary consequence of increased venous admixture in acute respiratory distress syndrome?
Decreased oxygenation
What is the definition of severe ARDS according to the Berlin Classification?
PaO2/FiO2 < 100 mmHg
What is the primary consequence of decreased lung compliance in acute respiratory distress syndrome?
Increased work of breathing
What is the characteristic origin of edema in acute respiratory distress syndrome according to the Berlin Classification?
Non-cardiogenic
What is the primary effect of increased pulmonary vascular permeability on the lungs?
Increased lung weight
What is the consequence of bilateral radiographic opacities on lung function?
Decreased lung compliance
What is the primary mechanism underlying the development of hypoxemia in ARDS?
Decreased oxygen delivery to tissues
What is the consequence of increased physiological dead space on respiratory function?
Impaired gas exchange
What is the primary characteristic of the inflammatory response in ARDS?
Acute and diffuse
What is the primary timing of ARDS development after a known clinical insult?
Within 1 week
What is the primary effect of PEEP > 5 cm H20 on oxygenation in ARDS?
Increased oxygenation
What is the primary characteristic of lung injury in ARDS?
Diffuse and irreversible
What is the primary consequence of loss of aerated lung tissue in ARDS?
Impaired lung function
Test your understanding of the fundamental principles of respiratory support, including passive oxygen delivery, non-invasive positive pressure, and obstructive sleep apnea. This quiz covers the basics of respiratory support and ARDS, without requiring expert knowledge in respiratory therapy or pulmonology. Get ready to breathe easy!
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