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Mechanical Ventilation during COVID-19: A Review of the First Year of the Pandemic

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1.  Both COVID-19 associated ARDS and traditional ARDS presents as varying intensity of the following common features:
  1. Lung injury intensity
  2. Reduced compliance
  3. Hypoxemia
  4. All of the above
2.  Proponents of early intubation to treat COVID-19 respiratory failure cited which of the following reasons to defend their position?
  1. Limit the risk aerosolization associated with NIV
  2. Control breathing pattern to help induce P-SILI
  3. Limit the use of NIV ventilators for COPD patients without COVID-19
  4. To be able to perform recruitment maneuvers more safely
3.  One of the primary pathologic factors that is prominent in COVID-19 respiratory failure but absent in traditional ARDS is?
  1. The uniformly lower PEEP requirements of
  2. The uniform absence of severe lung consolidation seen on chest CT scans
  3. Loss of compensatory hypoxemic vasoconstriction magnifying V/Q mismatching
  4. The uniformly higher PEEP requirements in traditional ARDS of> 15 cmH2O
4.  Which of the following factors are believed necessary for a patient to develop self-inflicted lung injury in COVID-19 respiratory failure?
  1. Increased respiratory drive
  2. Relatively preserved respiratory muscle strength
  3. Relatively normal compliance and resting lung volume
  4. All of the above
5.  The ventilatory requirements of patients with COVID-19 associated respiratory failure include which of the following?
  1. Average PEEP between 10-14 cmH2O
  2. Average VT between 6 to slightly more than 8 mL/kg
  3. Approximately 80% of patients could be maintained at a VT
  4. All of the above